Home / 131,335.68-181,249.20-74,758.80

Finding the Fourth Proportional to 131,335.68, 181,249.20 and 74,758.80

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Solution

The fourth proportional to 131,335.68, 181,249.20 and 74,758.80 is: 103,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,335.68 : 181,249.20 = 74,758.80 : x
  2. Step 2: Convert to fraction form
    131,335.68/181,249.20 = 74,758.80/x
  3. Step 3: Cross multiply
    131,335.68x = 181,249.20 × 74,758.80
  4. Step 4: Simplify right side
    131,335.68x = 13,549,972,692.96
  5. Step 5: Solve for x
    x = 13,549,972,692.96/131,335.68
  6. Step 6: Final answer
    x = 103,170.54

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1.5x scale

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.