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Finding the Fourth Proportional to 156,757.62, 216,200.42 and 103,097.74

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Solution

The fourth proportional to 156,757.62, 216,200.42 and 103,097.74 is: 142,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,757.62 : 216,200.42 = 103,097.74 : x
  2. Step 2: Convert to fraction form
    156,757.62/216,200.42 = 103,097.74/x
  3. Step 3: Cross multiply
    156,757.62x = 216,200.42 × 103,097.74
  4. Step 4: Simplify right side
    156,757.62x = 22,289,774,689.05
  5. Step 5: Solve for x
    x = 22,289,774,689.05/156,757.62
  6. Step 6: Final answer
    x = 142,192.61

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1.5x scale

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.