Home / 113,505.47-156,635.25-71,087.39

Finding the Fourth Proportional to 113,505.47, 156,635.25 and 71,087.39

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Solution

The fourth proportional to 113,505.47, 156,635.25 and 71,087.39 is: 98,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,505.47 : 156,635.25 = 71,087.39 : x
  2. Step 2: Convert to fraction form
    113,505.47/156,635.25 = 71,087.39/x
  3. Step 3: Cross multiply
    113,505.47x = 156,635.25 × 71,087.39
  4. Step 4: Simplify right side
    113,505.47x = 11,134,790,321.32
  5. Step 5: Solve for x
    x = 11,134,790,321.32/113,505.47
  6. Step 6: Final answer
    x = 98,099.16

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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.