Home / 131,685.62-197,559.88-42,939.20

Finding the Fourth Proportional to 131,685.62, 197,559.88 and 42,939.20

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Solution

The fourth proportional to 131,685.62, 197,559.88 and 42,939.20 is: 64,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,685.62 : 197,559.88 = 42,939.20 : x
  2. Step 2: Convert to fraction form
    131,685.62/197,559.88 = 42,939.20/x
  3. Step 3: Cross multiply
    131,685.62x = 197,559.88 × 42,939.20
  4. Step 4: Simplify right side
    131,685.62x = 8,483,063,585.85
  5. Step 5: Solve for x
    x = 8,483,063,585.85/131,685.62
  6. Step 6: Final answer
    x = 64,419.06

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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.