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Finding the Fourth Proportional to 150,168.80, 207,284.79 and 86,531.96

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Solution

The fourth proportional to 150,168.80, 207,284.79 and 86,531.96 is: 119,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,168.80 : 207,284.79 = 86,531.96 : x
  2. Step 2: Convert to fraction form
    150,168.80/207,284.79 = 86,531.96/x
  3. Step 3: Cross multiply
    150,168.80x = 207,284.79 × 86,531.96
  4. Step 4: Simplify right side
    150,168.80x = 17,936,758,120.46
  5. Step 5: Solve for x
    x = 17,936,758,120.46/150,168.80
  6. Step 6: Final answer
    x = 119,443.98

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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.