Home / 155,231.45-232,652.40-66,380.48

Finding the Fourth Proportional to 155,231.45, 232,652.40 and 66,380.48

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Solution

The fourth proportional to 155,231.45, 232,652.40 and 66,380.48 is: 99,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,231.45 : 232,652.40 = 66,380.48 : x
  2. Step 2: Convert to fraction form
    155,231.45/232,652.40 = 66,380.48/x
  3. Step 3: Cross multiply
    155,231.45x = 232,652.40 × 66,380.48
  4. Step 4: Simplify right side
    155,231.45x = 15,443,577,818.80
  5. Step 5: Solve for x
    x = 15,443,577,818.80/155,231.45
  6. Step 6: Final answer
    x = 99,487.43

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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.