Home / 131,382.20-181,307.61-74,793.50

Finding the Fourth Proportional to 131,382.20, 181,307.61 and 74,793.50

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Solution

The fourth proportional to 131,382.20, 181,307.61 and 74,793.50 is: 103,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,382.20 : 181,307.61 = 74,793.50 : x
  2. Step 2: Convert to fraction form
    131,382.20/181,307.61 = 74,793.50/x
  3. Step 3: Cross multiply
    131,382.20x = 181,307.61 × 74,793.50
  4. Step 4: Simplify right side
    131,382.20x = 13,560,630,728.54
  5. Step 5: Solve for x
    x = 13,560,630,728.54/131,382.20
  6. Step 6: Final answer
    x = 103,215.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.