Home / 129,691.48-194,537.22-100,152.40

Finding the Fourth Proportional to 129,691.48, 194,537.22 and 100,152.40

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Solution

The fourth proportional to 129,691.48, 194,537.22 and 100,152.40 is: 150,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,691.48 : 194,537.22 = 100,152.40 : x
  2. Step 2: Convert to fraction form
    129,691.48/194,537.22 = 100,152.40/x
  3. Step 3: Cross multiply
    129,691.48x = 194,537.22 × 100,152.40
  4. Step 4: Simplify right side
    129,691.48x = 19,483,369,472.33
  5. Step 5: Solve for x
    x = 19,483,369,472.33/129,691.48
  6. Step 6: Final answer
    x = 150,228.60

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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.