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Finding the Fourth Proportional to 113,617, 156,794.70 and 63,319.24

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Solution

The fourth proportional to 113,617, 156,794.70 and 63,319.24 is: 87,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,617 : 156,794.70 = 63,319.24 : x
  2. Step 2: Convert to fraction form
    113,617/156,794.70 = 63,319.24/x
  3. Step 3: Cross multiply
    113,617x = 156,794.70 × 63,319.24
  4. Step 4: Simplify right side
    113,617x = 9,928,121,240.03
  5. Step 5: Solve for x
    x = 9,928,121,240.03/113,617
  6. Step 6: Final answer
    x = 87,382.36

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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.