Home / 83,981.91-125,358.41-74,017.74

Finding the Fourth Proportional to 83,981.91, 125,358.41 and 74,017.74

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Solution

The fourth proportional to 83,981.91, 125,358.41 and 74,017.74 is: 110,485.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,981.91 : 125,358.41 = 74,017.74 : x
  2. Step 2: Convert to fraction form
    83,981.91/125,358.41 = 74,017.74/x
  3. Step 3: Cross multiply
    83,981.91x = 125,358.41 × 74,017.74
  4. Step 4: Simplify right side
    83,981.91x = 9,278,746,198.19
  5. Step 5: Solve for x
    x = 9,278,746,198.19/83,981.91
  6. Step 6: Final answer
    x = 110,485.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.