Home / 141,752.91-212,761.13-71,682.51

Finding the Fourth Proportional to 141,752.91, 212,761.13 and 71,682.51

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Solution

The fourth proportional to 141,752.91, 212,761.13 and 71,682.51 is: 107,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,752.91 : 212,761.13 = 71,682.51 : x
  2. Step 2: Convert to fraction form
    141,752.91/212,761.13 = 71,682.51/x
  3. Step 3: Cross multiply
    141,752.91x = 212,761.13 × 71,682.51
  4. Step 4: Simplify right side
    141,752.91x = 15,251,251,470.42
  5. Step 5: Solve for x
    x = 15,251,251,470.42/141,752.91
  6. Step 6: Final answer
    x = 107,590.39

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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.