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Finding the Fourth Proportional to 150,171.80, 207,288.92 and 86,534.96

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Solution

The fourth proportional to 150,171.80, 207,288.92 and 86,534.96 is: 119,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,171.80 : 207,288.92 = 86,534.96 : x
  2. Step 2: Convert to fraction form
    150,171.80/207,288.92 = 86,534.96/x
  3. Step 3: Cross multiply
    150,171.80x = 207,288.92 × 86,534.96
  4. Step 4: Simplify right side
    150,171.80x = 17,937,737,580.54
  5. Step 5: Solve for x
    x = 17,937,737,580.54/150,171.80
  6. Step 6: Final answer
    x = 119,448.11

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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.