Home / 141,920.91-212,881.38-57,726.87

Finding the Fourth Proportional to 141,920.91, 212,881.38 and 57,726.87

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Solution

The fourth proportional to 141,920.91, 212,881.38 and 57,726.87 is: 86,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,920.91 : 212,881.38 = 57,726.87 : x
  2. Step 2: Convert to fraction form
    141,920.91/212,881.38 = 57,726.87/x
  3. Step 3: Cross multiply
    141,920.91x = 212,881.38 × 57,726.87
  4. Step 4: Simplify right side
    141,920.91x = 12,288,975,748.68
  5. Step 5: Solve for x
    x = 12,288,975,748.68/141,920.91
  6. Step 6: Final answer
    x = 86,590.31

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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.