Home / 113,605.20-170,406.20-51,275.60

Finding the Fourth Proportional to 113,605.20, 170,406.20 and 51,275.60

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Solution

The fourth proportional to 113,605.20, 170,406.20 and 51,275.60 is: 76,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,605.20 : 170,406.20 = 51,275.60 : x
  2. Step 2: Convert to fraction form
    113,605.20/170,406.20 = 51,275.60/x
  3. Step 3: Cross multiply
    113,605.20x = 170,406.20 × 51,275.60
  4. Step 4: Simplify right side
    113,605.20x = 8,737,680,148.72
  5. Step 5: Solve for x
    x = 8,737,680,148.72/113,605.20
  6. Step 6: Final answer
    x = 76,912.68

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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.