Home / 141,836.20-212,754.30-78,850.60

Finding the Fourth Proportional to 141,836.20, 212,754.30 and 78,850.60

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Solution

The fourth proportional to 141,836.20, 212,754.30 and 78,850.60 is: 118,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,836.20 : 212,754.30 = 78,850.60 : x
  2. Step 2: Convert to fraction form
    141,836.20/212,754.30 = 78,850.60/x
  3. Step 3: Cross multiply
    141,836.20x = 212,754.30 × 78,850.60
  4. Step 4: Simplify right side
    141,836.20x = 16,775,804,207.58
  5. Step 5: Solve for x
    x = 16,775,804,207.58/141,836.20
  6. Step 6: Final answer
    x = 118,275.90

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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.