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Finding the Fourth Proportional to 100,358.66, 138,499.44 and 60,064.76

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Solution

The fourth proportional to 100,358.66, 138,499.44 and 60,064.76 is: 82,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,358.66 : 138,499.44 = 60,064.76 : x
  2. Step 2: Convert to fraction form
    100,358.66/138,499.44 = 60,064.76/x
  3. Step 3: Cross multiply
    100,358.66x = 138,499.44 × 60,064.76
  4. Step 4: Simplify right side
    100,358.66x = 8,318,935,623.73
  5. Step 5: Solve for x
    x = 8,318,935,623.73/100,358.66
  6. Step 6: Final answer
    x = 82,892.06

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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.