Home / 113,432.70-170,149.05-71,442.30

Finding the Fourth Proportional to 113,432.70, 170,149.05 and 71,442.30

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Solution

The fourth proportional to 113,432.70, 170,149.05 and 71,442.30 is: 107,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,432.70 : 170,149.05 = 71,442.30 : x
  2. Step 2: Convert to fraction form
    113,432.70/170,149.05 = 71,442.30/x
  3. Step 3: Cross multiply
    113,432.70x = 170,149.05 × 71,442.30
  4. Step 4: Simplify right side
    113,432.70x = 12,155,839,474.82
  5. Step 5: Solve for x
    x = 12,155,839,474.82/113,432.70
  6. Step 6: Final answer
    x = 107,163.45

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1.5x scale

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.