Home / 99,350.34-137,103.39-54,638.34

Finding the Fourth Proportional to 99,350.34, 137,103.39 and 54,638.34

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Solution

The fourth proportional to 99,350.34, 137,103.39 and 54,638.34 is: 75,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,350.34 : 137,103.39 = 54,638.34 : x
  2. Step 2: Convert to fraction form
    99,350.34/137,103.39 = 54,638.34/x
  3. Step 3: Cross multiply
    99,350.34x = 137,103.39 × 54,638.34
  4. Step 4: Simplify right side
    99,350.34x = 7,491,101,637.97
  5. Step 5: Solve for x
    x = 7,491,101,637.97/99,350.34
  6. Step 6: Final answer
    x = 75,400.87

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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.