Home / 129,281.85-193,922.78-40,542.51

Finding the Fourth Proportional to 129,281.85, 193,922.78 and 40,542.51

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Solution

The fourth proportional to 129,281.85, 193,922.78 and 40,542.51 is: 60,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,281.85 : 193,922.78 = 40,542.51 : x
  2. Step 2: Convert to fraction form
    129,281.85/193,922.78 = 40,542.51/x
  3. Step 3: Cross multiply
    129,281.85x = 193,922.78 × 40,542.51
  4. Step 4: Simplify right side
    129,281.85x = 7,862,116,044.67
  5. Step 5: Solve for x
    x = 7,862,116,044.67/129,281.85
  6. Step 6: Final answer
    x = 60,813.77

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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.