Home / 141,942.20-212,877-42,079.08

Finding the Fourth Proportional to 141,942.20, 212,877 and 42,079.08

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Solution

The fourth proportional to 141,942.20, 212,877 and 42,079.08 is: 63,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,942.20 : 212,877 = 42,079.08 : x
  2. Step 2: Convert to fraction form
    141,942.20/212,877 = 42,079.08/x
  3. Step 3: Cross multiply
    141,942.20x = 212,877 × 42,079.08
  4. Step 4: Simplify right side
    141,942.20x = 8,957,668,313.16
  5. Step 5: Solve for x
    x = 8,957,668,313.16/141,942.20
  6. Step 6: Final answer
    x = 63,107.86

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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.