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Finding the Fourth Proportional to 150,417.34, 207,575.85 and 89,990.44

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Solution

The fourth proportional to 150,417.34, 207,575.85 and 89,990.44 is: 124,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,417.34 : 207,575.85 = 89,990.44 : x
  2. Step 2: Convert to fraction form
    150,417.34/207,575.85 = 89,990.44/x
  3. Step 3: Cross multiply
    150,417.34x = 207,575.85 × 89,990.44
  4. Step 4: Simplify right side
    150,417.34x = 18,679,842,074.87
  5. Step 5: Solve for x
    x = 18,679,842,074.87/150,417.34
  6. Step 6: Final answer
    x = 124,186.76

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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.