Home / 115,111.38-158,861.02-69,793.70

Finding the Fourth Proportional to 115,111.38, 158,861.02 and 69,793.70

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Solution

The fourth proportional to 115,111.38, 158,861.02 and 69,793.70 is: 96,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,111.38 : 158,861.02 = 69,793.70 : x
  2. Step 2: Convert to fraction form
    115,111.38/158,861.02 = 69,793.70/x
  3. Step 3: Cross multiply
    115,111.38x = 158,861.02 × 69,793.70
  4. Step 4: Simplify right side
    115,111.38x = 11,087,498,371.57
  5. Step 5: Solve for x
    x = 11,087,498,371.57/115,111.38
  6. Step 6: Final answer
    x = 96,319.74

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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.