Home / 141,384.20-212,076.30-129,403.40

Finding the Fourth Proportional to 141,384.20, 212,076.30 and 129,403.40

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Solution

The fourth proportional to 141,384.20, 212,076.30 and 129,403.40 is: 194,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,384.20 : 212,076.30 = 129,403.40 : x
  2. Step 2: Convert to fraction form
    141,384.20/212,076.30 = 129,403.40/x
  3. Step 3: Cross multiply
    141,384.20x = 212,076.30 × 129,403.40
  4. Step 4: Simplify right side
    141,384.20x = 27,443,394,279.42
  5. Step 5: Solve for x
    x = 27,443,394,279.42/141,384.20
  6. Step 6: Final answer
    x = 194,105.10

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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.