Home / 99,433.14-137,217.75-54,721.14

Finding the Fourth Proportional to 99,433.14, 137,217.75 and 54,721.14

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Solution

The fourth proportional to 99,433.14, 137,217.75 and 54,721.14 is: 75,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,433.14 : 137,217.75 = 54,721.14 : x
  2. Step 2: Convert to fraction form
    99,433.14/137,217.75 = 54,721.14/x
  3. Step 3: Cross multiply
    99,433.14x = 137,217.75 × 54,721.14
  4. Step 4: Simplify right side
    99,433.14x = 7,508,711,708.24
  5. Step 5: Solve for x
    x = 7,508,711,708.24/99,433.14
  6. Step 6: Final answer
    x = 75,515.18

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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.