Home / 99,722.22-137,617.05-54,401.16

Finding the Fourth Proportional to 99,722.22, 137,617.05 and 54,401.16

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Solution

The fourth proportional to 99,722.22, 137,617.05 and 54,401.16 is: 75,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,722.22 : 137,617.05 = 54,401.16 : x
  2. Step 2: Convert to fraction form
    99,722.22/137,617.05 = 54,401.16/x
  3. Step 3: Cross multiply
    99,722.22x = 137,617.05 × 54,401.16
  4. Step 4: Simplify right side
    99,722.22x = 7,486,527,155.78
  5. Step 5: Solve for x
    x = 7,486,527,155.78/99,722.22
  6. Step 6: Final answer
    x = 75,073.81

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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.