Home / 99,903.28-149,854.92-40,743.58

Finding the Fourth Proportional to 99,903.28, 149,854.92 and 40,743.58

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Solution

The fourth proportional to 99,903.28, 149,854.92 and 40,743.58 is: 61,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,903.28 : 149,854.92 = 40,743.58 : x
  2. Step 2: Convert to fraction form
    99,903.28/149,854.92 = 40,743.58/x
  3. Step 3: Cross multiply
    99,903.28x = 149,854.92 × 40,743.58
  4. Step 4: Simplify right side
    99,903.28x = 6,105,625,921.41
  5. Step 5: Solve for x
    x = 6,105,625,921.41/99,903.28
  6. Step 6: Final answer
    x = 61,115.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.