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Finding the Fourth Proportional to 156,752.61, 216,321.08 and 88,767.74

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Solution

The fourth proportional to 156,752.61, 216,321.08 and 88,767.74 is: 122,500.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,752.61 : 216,321.08 = 88,767.74 : x
  2. Step 2: Convert to fraction form
    156,752.61/216,321.08 = 88,767.74/x
  3. Step 3: Cross multiply
    156,752.61x = 216,321.08 × 88,767.74
  4. Step 4: Simplify right side
    156,752.61x = 19,202,333,482.92
  5. Step 5: Solve for x
    x = 19,202,333,482.92/156,752.61
  6. Step 6: Final answer
    x = 122,500.89

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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.