Home / 119,542.68-164,919.46-71,135

Finding the Fourth Proportional to 119,542.68, 164,919.46 and 71,135

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Solution

The fourth proportional to 119,542.68, 164,919.46 and 71,135 is: 98,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,542.68 : 164,919.46 = 71,135 : x
  2. Step 2: Convert to fraction form
    119,542.68/164,919.46 = 71,135/x
  3. Step 3: Cross multiply
    119,542.68x = 164,919.46 × 71,135
  4. Step 4: Simplify right side
    119,542.68x = 11,731,545,787.10
  5. Step 5: Solve for x
    x = 11,731,545,787.10/119,542.68
  6. Step 6: Final answer
    x = 98,136.88

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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.