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Finding the Fourth Proportional to 158,049.60, 218,083.92 and 90,057.92

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Solution

The fourth proportional to 158,049.60, 218,083.92 and 90,057.92 is: 124,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,049.60 : 218,083.92 = 90,057.92 : x
  2. Step 2: Convert to fraction form
    158,049.60/218,083.92 = 90,057.92/x
  3. Step 3: Cross multiply
    158,049.60x = 218,083.92 × 90,057.92
  4. Step 4: Simplify right side
    158,049.60x = 19,640,184,220.65
  5. Step 5: Solve for x
    x = 19,640,184,220.65/158,049.60
  6. Step 6: Final answer
    x = 124,265.95

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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.