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Finding the Fourth Proportional to 150,393.88, 207,543.54 and 89,967.06

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Solution

The fourth proportional to 150,393.88, 207,543.54 and 89,967.06 is: 124,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,393.88 : 207,543.54 = 89,967.06 : x
  2. Step 2: Convert to fraction form
    150,393.88/207,543.54 = 89,967.06/x
  3. Step 3: Cross multiply
    150,393.88x = 207,543.54 × 89,967.06
  4. Step 4: Simplify right side
    150,393.88x = 18,672,082,115.79
  5. Step 5: Solve for x
    x = 18,672,082,115.79/150,393.88
  6. Step 6: Final answer
    x = 124,154.53

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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.