Home / 97,801.79-135,033.69-66,015.23

Finding the Fourth Proportional to 97,801.79, 135,033.69 and 66,015.23

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Solution

The fourth proportional to 97,801.79, 135,033.69 and 66,015.23 is: 91,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,801.79 : 135,033.69 = 66,015.23 : x
  2. Step 2: Convert to fraction form
    97,801.79/135,033.69 = 66,015.23/x
  3. Step 3: Cross multiply
    97,801.79x = 135,033.69 × 66,015.23
  4. Step 4: Simplify right side
    97,801.79x = 8,914,279,427.93
  5. Step 5: Solve for x
    x = 8,914,279,427.93/97,801.79
  6. Step 6: Final answer
    x = 91,146.39

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.