Home / 158,021.97-218,143.47-93,470.85

Finding the Fourth Proportional to 158,021.97, 218,143.47 and 93,470.85

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Solution

The fourth proportional to 158,021.97, 218,143.47 and 93,470.85 is: 129,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,021.97 : 218,143.47 = 93,470.85 : x
  2. Step 2: Convert to fraction form
    158,021.97/218,143.47 = 93,470.85/x
  3. Step 3: Cross multiply
    158,021.97x = 218,143.47 × 93,470.85
  4. Step 4: Simplify right side
    158,021.97x = 20,390,055,562.85
  5. Step 5: Solve for x
    x = 20,390,055,562.85/158,021.97
  6. Step 6: Final answer
    x = 129,033.04

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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.