Home / 83,981.66-125,358.03-74,017.49

Finding the Fourth Proportional to 83,981.66, 125,358.03 and 74,017.49

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Solution

The fourth proportional to 83,981.66, 125,358.03 and 74,017.49 is: 110,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,981.66 : 125,358.03 = 74,017.49 : x
  2. Step 2: Convert to fraction form
    83,981.66/125,358.03 = 74,017.49/x
  3. Step 3: Cross multiply
    83,981.66x = 125,358.03 × 74,017.49
  4. Step 4: Simplify right side
    83,981.66x = 9,278,686,731.94
  5. Step 5: Solve for x
    x = 9,278,686,731.94/83,981.66
  6. Step 6: Final answer
    x = 110,484.68

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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.