Home / 147,918.60-221,748.30-88,691.40

Finding the Fourth Proportional to 147,918.60, 221,748.30 and 88,691.40

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Solution

The fourth proportional to 147,918.60, 221,748.30 and 88,691.40 is: 132,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,918.60 : 221,748.30 = 88,691.40 : x
  2. Step 2: Convert to fraction form
    147,918.60/221,748.30 = 88,691.40/x
  3. Step 3: Cross multiply
    147,918.60x = 221,748.30 × 88,691.40
  4. Step 4: Simplify right side
    147,918.60x = 19,667,167,174.62
  5. Step 5: Solve for x
    x = 19,667,167,174.62/147,918.60
  6. Step 6: Final answer
    x = 132,959.39

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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.