Home / 113,702.12-156,906.80-62,719.60

Finding the Fourth Proportional to 113,702.12, 156,906.80 and 62,719.60

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Solution

The fourth proportional to 113,702.12, 156,906.80 and 62,719.60 is: 86,551.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,702.12 : 156,906.80 = 62,719.60 : x
  2. Step 2: Convert to fraction form
    113,702.12/156,906.80 = 62,719.60/x
  3. Step 3: Cross multiply
    113,702.12x = 156,906.80 × 62,719.60
  4. Step 4: Simplify right side
    113,702.12x = 9,841,131,733.28
  5. Step 5: Solve for x
    x = 9,841,131,733.28/113,702.12
  6. Step 6: Final answer
    x = 86,551.88

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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.