Home / 158,283.38-218,451.95-90,284.78

Finding the Fourth Proportional to 158,283.38, 218,451.95 and 90,284.78

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Solution

The fourth proportional to 158,283.38, 218,451.95 and 90,284.78 is: 124,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,283.38 : 218,451.95 = 90,284.78 : x
  2. Step 2: Convert to fraction form
    158,283.38/218,451.95 = 90,284.78/x
  3. Step 3: Cross multiply
    158,283.38x = 218,451.95 × 90,284.78
  4. Step 4: Simplify right side
    158,283.38x = 19,722,885,794.90
  5. Step 5: Solve for x
    x = 19,722,885,794.90/158,283.38
  6. Step 6: Final answer
    x = 124,604.91

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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.