Home / 131,530.92-197,277.84-42,785.88

Finding the Fourth Proportional to 131,530.92, 197,277.84 and 42,785.88

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Solution

The fourth proportional to 131,530.92, 197,277.84 and 42,785.88 is: 64,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,530.92 : 197,277.84 = 42,785.88 : x
  2. Step 2: Convert to fraction form
    131,530.92/197,277.84 = 42,785.88/x
  3. Step 3: Cross multiply
    131,530.92x = 197,277.84 × 42,785.88
  4. Step 4: Simplify right side
    131,530.92x = 8,440,705,988.90
  5. Step 5: Solve for x
    x = 8,440,705,988.90/131,530.92
  6. Step 6: Final answer
    x = 64,172.79

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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.