Home / 113,560.20-170,340.30-71,569.80

Finding the Fourth Proportional to 113,560.20, 170,340.30 and 71,569.80

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Solution

The fourth proportional to 113,560.20, 170,340.30 and 71,569.80 is: 107,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,560.20 : 170,340.30 = 71,569.80 : x
  2. Step 2: Convert to fraction form
    113,560.20/170,340.30 = 71,569.80/x
  3. Step 3: Cross multiply
    113,560.20x = 170,340.30 × 71,569.80
  4. Step 4: Simplify right side
    113,560.20x = 12,191,221,202.94
  5. Step 5: Solve for x
    x = 12,191,221,202.94/113,560.20
  6. Step 6: Final answer
    x = 107,354.70

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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.