Home / 247,739.20-371,608.80-89,972.80

Finding the Fourth Proportional to 247,739.20, 371,608.80 and 89,972.80

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Solution

The fourth proportional to 247,739.20, 371,608.80 and 89,972.80 is: 134,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,739.20 : 371,608.80 = 89,972.80 : x
  2. Step 2: Convert to fraction form
    247,739.20/371,608.80 = 89,972.80/x
  3. Step 3: Cross multiply
    247,739.20x = 371,608.80 × 89,972.80
  4. Step 4: Simplify right side
    247,739.20x = 33,434,684,240.64
  5. Step 5: Solve for x
    x = 33,434,684,240.64/247,739.20
  6. Step 6: Final answer
    x = 134,959.20

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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.