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Finding the Fourth Proportional to 161,425.47, 222,770.13 and 89,812.17

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Solution

The fourth proportional to 161,425.47, 222,770.13 and 89,812.17 is: 123,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,425.47 : 222,770.13 = 89,812.17 : x
  2. Step 2: Convert to fraction form
    161,425.47/222,770.13 = 89,812.17/x
  3. Step 3: Cross multiply
    161,425.47x = 222,770.13 × 89,812.17
  4. Step 4: Simplify right side
    161,425.47x = 20,007,468,786.48
  5. Step 5: Solve for x
    x = 20,007,468,786.48/161,425.47
  6. Step 6: Final answer
    x = 123,942.45

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1.5x scale

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.