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Finding the Fourth Proportional to 161,732.80, 242,565.78 and 43,376

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Solution

The fourth proportional to 161,732.80, 242,565.78 and 43,376 is: 65,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,732.80 : 242,565.78 = 43,376 : x
  2. Step 2: Convert to fraction form
    161,732.80/242,565.78 = 43,376/x
  3. Step 3: Cross multiply
    161,732.80x = 242,565.78 × 43,376
  4. Step 4: Simplify right side
    161,732.80x = 10,521,533,273.28
  5. Step 5: Solve for x
    x = 10,521,533,273.28/161,732.80
  6. Step 6: Final answer
    x = 65,055.04

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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.