Home / 120,780.10-181,170.15-41,902.30

Finding the Fourth Proportional to 120,780.10, 181,170.15 and 41,902.30

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Solution

The fourth proportional to 120,780.10, 181,170.15 and 41,902.30 is: 62,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.10 : 181,170.15 = 41,902.30 : x
  2. Step 2: Convert to fraction form
    120,780.10/181,170.15 = 41,902.30/x
  3. Step 3: Cross multiply
    120,780.10x = 181,170.15 × 41,902.30
  4. Step 4: Simplify right side
    120,780.10x = 7,591,445,976.35
  5. Step 5: Solve for x
    x = 7,591,445,976.35/120,780.10
  6. Step 6: Final answer
    x = 62,853.45

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1.5x scale

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.