Home / 148,979.20-223,479.60-89,687.20

Finding the Fourth Proportional to 148,979.20, 223,479.60 and 89,687.20

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Solution

The fourth proportional to 148,979.20, 223,479.60 and 89,687.20 is: 134,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,979.20 : 223,479.60 = 89,687.20 : x
  2. Step 2: Convert to fraction form
    148,979.20/223,479.60 = 89,687.20/x
  3. Step 3: Cross multiply
    148,979.20x = 223,479.60 × 89,687.20
  4. Step 4: Simplify right side
    148,979.20x = 20,043,259,581.12
  5. Step 5: Solve for x
    x = 20,043,259,581.12/148,979.20
  6. Step 6: Final answer
    x = 134,537.30

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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.