Home / 149,601.38-206,421.68-89,177.64

Finding the Fourth Proportional to 149,601.38, 206,421.68 and 89,177.64

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Solution

The fourth proportional to 149,601.38, 206,421.68 and 89,177.64 is: 123,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,601.38 : 206,421.68 = 89,177.64 : x
  2. Step 2: Convert to fraction form
    149,601.38/206,421.68 = 89,177.64/x
  3. Step 3: Cross multiply
    149,601.38x = 206,421.68 × 89,177.64
  4. Step 4: Simplify right side
    149,601.38x = 18,408,197,821.35
  5. Step 5: Solve for x
    x = 18,408,197,821.35/149,601.38
  6. Step 6: Final answer
    x = 123,048.32

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1.5x scale

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.