Home / 99,646.10-137,524.03-57,203.72

Finding the Fourth Proportional to 99,646.10, 137,524.03 and 57,203.72

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Solution

The fourth proportional to 99,646.10, 137,524.03 and 57,203.72 is: 78,948.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,646.10 : 137,524.03 = 57,203.72 : x
  2. Step 2: Convert to fraction form
    99,646.10/137,524.03 = 57,203.72/x
  3. Step 3: Cross multiply
    99,646.10x = 137,524.03 × 57,203.72
  4. Step 4: Simplify right side
    99,646.10x = 7,866,885,790.48
  5. Step 5: Solve for x
    x = 7,866,885,790.48/99,646.10
  6. Step 6: Final answer
    x = 78,948.26

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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.