Home / 99,331.40-148,982.52-40,165.76

Finding the Fourth Proportional to 99,331.40, 148,982.52 and 40,165.76

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Solution

The fourth proportional to 99,331.40, 148,982.52 and 40,165.76 is: 60,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.40 : 148,982.52 = 40,165.76 : x
  2. Step 2: Convert to fraction form
    99,331.40/148,982.52 = 40,165.76/x
  3. Step 3: Cross multiply
    99,331.40x = 148,982.52 × 40,165.76
  4. Step 4: Simplify right side
    99,331.40x = 5,983,996,142.52
  5. Step 5: Solve for x
    x = 5,983,996,142.52/99,331.40
  6. Step 6: Final answer
    x = 60,242.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.