Home / 147,353.38-221,029.16-42,172.65

Finding the Fourth Proportional to 147,353.38, 221,029.16 and 42,172.65

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Solution

The fourth proportional to 147,353.38, 221,029.16 and 42,172.65 is: 63,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,353.38 : 221,029.16 = 42,172.65 : x
  2. Step 2: Convert to fraction form
    147,353.38/221,029.16 = 42,172.65/x
  3. Step 3: Cross multiply
    147,353.38x = 221,029.16 × 42,172.65
  4. Step 4: Simplify right side
    147,353.38x = 9,321,385,193.61
  5. Step 5: Solve for x
    x = 9,321,385,193.61/147,353.38
  6. Step 6: Final answer
    x = 63,258.71

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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.