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Finding the Fourth Proportional to 161,467.64, 242,262.96 and 72,700.74

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Solution

The fourth proportional to 161,467.64, 242,262.96 and 72,700.74 is: 109,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,467.64 : 242,262.96 = 72,700.74 : x
  2. Step 2: Convert to fraction form
    161,467.64/242,262.96 = 72,700.74/x
  3. Step 3: Cross multiply
    161,467.64x = 242,262.96 × 72,700.74
  4. Step 4: Simplify right side
    161,467.64x = 17,612,696,466.59
  5. Step 5: Solve for x
    x = 17,612,696,466.59/161,467.64
  6. Step 6: Final answer
    x = 109,078.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.