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Finding the Fourth Proportional to 162,164.46, 242,920.10 and 80,866.38

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Solution

The fourth proportional to 162,164.46, 242,920.10 and 80,866.38 is: 121,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,164.46 : 242,920.10 = 80,866.38 : x
  2. Step 2: Convert to fraction form
    162,164.46/242,920.10 = 80,866.38/x
  3. Step 3: Cross multiply
    162,164.46x = 242,920.10 × 80,866.38
  4. Step 4: Simplify right side
    162,164.46x = 19,644,069,116.24
  5. Step 5: Solve for x
    x = 19,644,069,116.24/162,164.46
  6. Step 6: Final answer
    x = 121,136.71

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1.5x scale

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.