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Finding the Fourth Proportional to 157,037.20, 216,681.96 and 93,390.64

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Solution

The fourth proportional to 157,037.20, 216,681.96 and 93,390.64 is: 128,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,037.20 : 216,681.96 = 93,390.64 : x
  2. Step 2: Convert to fraction form
    157,037.20/216,681.96 = 93,390.64/x
  3. Step 3: Cross multiply
    157,037.20x = 216,681.96 × 93,390.64
  4. Step 4: Simplify right side
    157,037.20x = 20,236,066,920.85
  5. Step 5: Solve for x
    x = 20,236,066,920.85/157,037.20
  6. Step 6: Final answer
    x = 128,861.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.