Home / 144,042.60-215,729.82-139,058.92

Finding the Fourth Proportional to 144,042.60, 215,729.82 and 139,058.92

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Solution

The fourth proportional to 144,042.60, 215,729.82 and 139,058.92 is: 208,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,042.60 : 215,729.82 = 139,058.92 : x
  2. Step 2: Convert to fraction form
    144,042.60/215,729.82 = 139,058.92/x
  3. Step 3: Cross multiply
    144,042.60x = 215,729.82 × 139,058.92
  4. Step 4: Simplify right side
    144,042.60x = 29,999,155,780.99
  5. Step 5: Solve for x
    x = 29,999,155,780.99/144,042.60
  6. Step 6: Final answer
    x = 208,265.86

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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.