Home / 113,877.20-170,815.80-84,352.70

Finding the Fourth Proportional to 113,877.20, 170,815.80 and 84,352.70

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Solution

The fourth proportional to 113,877.20, 170,815.80 and 84,352.70 is: 126,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,877.20 : 170,815.80 = 84,352.70 : x
  2. Step 2: Convert to fraction form
    113,877.20/170,815.80 = 84,352.70/x
  3. Step 3: Cross multiply
    113,877.20x = 170,815.80 × 84,352.70
  4. Step 4: Simplify right side
    113,877.20x = 14,408,773,932.66
  5. Step 5: Solve for x
    x = 14,408,773,932.66/113,877.20
  6. Step 6: Final answer
    x = 126,529.05

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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.