Home / 119,160.11-164,372.31-71,385.78

Finding the Fourth Proportional to 119,160.11, 164,372.31 and 71,385.78

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Solution

The fourth proportional to 119,160.11, 164,372.31 and 71,385.78 is: 98,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,160.11 : 164,372.31 = 71,385.78 : x
  2. Step 2: Convert to fraction form
    119,160.11/164,372.31 = 71,385.78/x
  3. Step 3: Cross multiply
    119,160.11x = 164,372.31 × 71,385.78
  4. Step 4: Simplify right side
    119,160.11x = 11,733,845,559.75
  5. Step 5: Solve for x
    x = 11,733,845,559.75/119,160.11
  6. Step 6: Final answer
    x = 98,471.26

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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.