Home / 131,231.92-196,799.28-42,462.40

Finding the Fourth Proportional to 131,231.92, 196,799.28 and 42,462.40

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Solution

The fourth proportional to 131,231.92, 196,799.28 and 42,462.40 is: 63,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,231.92 : 196,799.28 = 42,462.40 : x
  2. Step 2: Convert to fraction form
    131,231.92/196,799.28 = 42,462.40/x
  3. Step 3: Cross multiply
    131,231.92x = 196,799.28 × 42,462.40
  4. Step 4: Simplify right side
    131,231.92x = 8,356,569,747.07
  5. Step 5: Solve for x
    x = 8,356,569,747.07/131,231.92
  6. Step 6: Final answer
    x = 63,677.87

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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.