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Finding the Fourth Proportional to 113,454, 156,566.52 and 63,156.24

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Solution

The fourth proportional to 113,454, 156,566.52 and 63,156.24 is: 87,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,454 : 156,566.52 = 63,156.24 : x
  2. Step 2: Convert to fraction form
    113,454/156,566.52 = 63,156.24/x
  3. Step 3: Cross multiply
    113,454x = 156,566.52 × 63,156.24
  4. Step 4: Simplify right side
    113,454x = 9,888,152,713.08
  5. Step 5: Solve for x
    x = 9,888,152,713.08/113,454
  6. Step 6: Final answer
    x = 87,155.61

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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.