Home / 158,175.38-218,287.50-90,202.61

Finding the Fourth Proportional to 158,175.38, 218,287.50 and 90,202.61

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Solution

The fourth proportional to 158,175.38, 218,287.50 and 90,202.61 is: 124,482.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,175.38 : 218,287.50 = 90,202.61 : x
  2. Step 2: Convert to fraction form
    158,175.38/218,287.50 = 90,202.61/x
  3. Step 3: Cross multiply
    158,175.38x = 218,287.50 × 90,202.61
  4. Step 4: Simplify right side
    158,175.38x = 19,690,102,230.38
  5. Step 5: Solve for x
    x = 19,690,102,230.38/158,175.38
  6. Step 6: Final answer
    x = 124,482.72

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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.