Home / 147,691.48-221,512.30-42,486.04

Finding the Fourth Proportional to 147,691.48, 221,512.30 and 42,486.04

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Solution

The fourth proportional to 147,691.48, 221,512.30 and 42,486.04 is: 63,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,691.48 : 221,512.30 = 42,486.04 : x
  2. Step 2: Convert to fraction form
    147,691.48/221,512.30 = 42,486.04/x
  3. Step 3: Cross multiply
    147,691.48x = 221,512.30 × 42,486.04
  4. Step 4: Simplify right side
    147,691.48x = 9,411,180,438.29
  5. Step 5: Solve for x
    x = 9,411,180,438.29/147,691.48
  6. Step 6: Final answer
    x = 63,721.89

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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.