Home / 109,508.34-151,115.33-61,758.84

Finding the Fourth Proportional to 109,508.34, 151,115.33 and 61,758.84

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Solution

The fourth proportional to 109,508.34, 151,115.33 and 61,758.84 is: 85,223.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,508.34 : 151,115.33 = 61,758.84 : x
  2. Step 2: Convert to fraction form
    109,508.34/151,115.33 = 61,758.84/x
  3. Step 3: Cross multiply
    109,508.34x = 151,115.33 × 61,758.84
  4. Step 4: Simplify right side
    109,508.34x = 9,332,707,487.02
  5. Step 5: Solve for x
    x = 9,332,707,487.02/109,508.34
  6. Step 6: Final answer
    x = 85,223.71

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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.