Home / 99,890.42-137,847.08-54,567.23

Finding the Fourth Proportional to 99,890.42, 137,847.08 and 54,567.23

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Solution

The fourth proportional to 99,890.42, 137,847.08 and 54,567.23 is: 75,301.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,890.42 : 137,847.08 = 54,567.23 : x
  2. Step 2: Convert to fraction form
    99,890.42/137,847.08 = 54,567.23/x
  3. Step 3: Cross multiply
    99,890.42x = 137,847.08 × 54,567.23
  4. Step 4: Simplify right side
    99,890.42x = 7,521,933,390.97
  5. Step 5: Solve for x
    x = 7,521,933,390.97/99,890.42
  6. Step 6: Final answer
    x = 75,301.85

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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.