Home / 98,154.24-135,316.80-66,272.64

Finding the Fourth Proportional to 98,154.24, 135,316.80 and 66,272.64

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Solution

The fourth proportional to 98,154.24, 135,316.80 and 66,272.64 is: 91,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,154.24 : 135,316.80 = 66,272.64 : x
  2. Step 2: Convert to fraction form
    98,154.24/135,316.80 = 66,272.64/x
  3. Step 3: Cross multiply
    98,154.24x = 135,316.80 × 66,272.64
  4. Step 4: Simplify right side
    98,154.24x = 8,967,801,572.35
  5. Step 5: Solve for x
    x = 8,967,801,572.35/98,154.24
  6. Step 6: Final answer
    x = 91,364.38

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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.