Home / 141,917.42-212,877-42,078.56

Finding the Fourth Proportional to 141,917.42, 212,877 and 42,078.56

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Solution

The fourth proportional to 141,917.42, 212,877 and 42,078.56 is: 63,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,917.42 : 212,877 = 42,078.56 : x
  2. Step 2: Convert to fraction form
    141,917.42/212,877 = 42,078.56/x
  3. Step 3: Cross multiply
    141,917.42x = 212,877 × 42,078.56
  4. Step 4: Simplify right side
    141,917.42x = 8,957,557,617.12
  5. Step 5: Solve for x
    x = 8,957,557,617.12/141,917.42
  6. Step 6: Final answer
    x = 63,118.10

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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.