Home / 141,822.20-212,733.30-71,838.20

Finding the Fourth Proportional to 141,822.20, 212,733.30 and 71,838.20

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Solution

The fourth proportional to 141,822.20, 212,733.30 and 71,838.20 is: 107,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,822.20 : 212,733.30 = 71,838.20 : x
  2. Step 2: Convert to fraction form
    141,822.20/212,733.30 = 71,838.20/x
  3. Step 3: Cross multiply
    141,822.20x = 212,733.30 × 71,838.20
  4. Step 4: Simplify right side
    141,822.20x = 15,282,377,352.06
  5. Step 5: Solve for x
    x = 15,282,377,352.06/141,822.20
  6. Step 6: Final answer
    x = 107,757.30

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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.