Home / 129,281.68-193,922.52-40,542.11

Finding the Fourth Proportional to 129,281.68, 193,922.52 and 40,542.11

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Solution

The fourth proportional to 129,281.68, 193,922.52 and 40,542.11 is: 60,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,281.68 : 193,922.52 = 40,542.11 : x
  2. Step 2: Convert to fraction form
    129,281.68/193,922.52 = 40,542.11/x
  3. Step 3: Cross multiply
    129,281.68x = 193,922.52 × 40,542.11
  4. Step 4: Simplify right side
    129,281.68x = 7,862,028,137.32
  5. Step 5: Solve for x
    x = 7,862,028,137.32/129,281.68
  6. Step 6: Final answer
    x = 60,813.17

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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.