Home / 141,872.30-212,700.45-71,801.90

Finding the Fourth Proportional to 141,872.30, 212,700.45 and 71,801.90

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Solution

The fourth proportional to 141,872.30, 212,700.45 and 71,801.90 is: 107,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,872.30 : 212,700.45 = 71,801.90 : x
  2. Step 2: Convert to fraction form
    141,872.30/212,700.45 = 71,801.90/x
  3. Step 3: Cross multiply
    141,872.30x = 212,700.45 × 71,801.90
  4. Step 4: Simplify right side
    141,872.30x = 15,272,296,440.86
  5. Step 5: Solve for x
    x = 15,272,296,440.86/141,872.30
  6. Step 6: Final answer
    x = 107,648.19

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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.