Home / 185,621.80-278,432.70-45,381.80

Finding the Fourth Proportional to 185,621.80, 278,432.70 and 45,381.80

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Solution

The fourth proportional to 185,621.80, 278,432.70 and 45,381.80 is: 68,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,621.80 : 278,432.70 = 45,381.80 : x
  2. Step 2: Convert to fraction form
    185,621.80/278,432.70 = 45,381.80/x
  3. Step 3: Cross multiply
    185,621.80x = 278,432.70 × 45,381.80
  4. Step 4: Simplify right side
    185,621.80x = 12,635,777,104.86
  5. Step 5: Solve for x
    x = 12,635,777,104.86/185,621.80
  6. Step 6: Final answer
    x = 68,072.70

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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.