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Finding the Fourth Proportional to 150,393.63, 207,543.21 and 89,966.82

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Solution

The fourth proportional to 150,393.63, 207,543.21 and 89,966.82 is: 124,154.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,393.63 : 207,543.21 = 89,966.82 : x
  2. Step 2: Convert to fraction form
    150,393.63/207,543.21 = 89,966.82/x
  3. Step 3: Cross multiply
    150,393.63x = 207,543.21 × 89,966.82
  4. Step 4: Simplify right side
    150,393.63x = 18,672,002,616.29
  5. Step 5: Solve for x
    x = 18,672,002,616.29/150,393.63
  6. Step 6: Final answer
    x = 124,154.21

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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.