Home / 158,537.52-218,781.76-86,918.04

Finding the Fourth Proportional to 158,537.52, 218,781.76 and 86,918.04

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Solution

The fourth proportional to 158,537.52, 218,781.76 and 86,918.04 is: 119,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,537.52 : 218,781.76 = 86,918.04 : x
  2. Step 2: Convert to fraction form
    158,537.52/218,781.76 = 86,918.04/x
  3. Step 3: Cross multiply
    158,537.52x = 218,781.76 × 86,918.04
  4. Step 4: Simplify right side
    158,537.52x = 19,016,081,766.95
  5. Step 5: Solve for x
    x = 19,016,081,766.95/158,537.52
  6. Step 6: Final answer
    x = 119,946.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.