Home / 98,015.25-135,302.33-66,227.21

Finding the Fourth Proportional to 98,015.25, 135,302.33 and 66,227.21

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Solution

The fourth proportional to 98,015.25, 135,302.33 and 66,227.21 is: 91,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,015.25 : 135,302.33 = 66,227.21 : x
  2. Step 2: Convert to fraction form
    98,015.25/135,302.33 = 66,227.21/x
  3. Step 3: Cross multiply
    98,015.25x = 135,302.33 × 66,227.21
  4. Step 4: Simplify right side
    98,015.25x = 8,960,695,822.40
  5. Step 5: Solve for x
    x = 8,960,695,822.40/98,015.25
  6. Step 6: Final answer
    x = 91,421.45

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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.