Home / 99,131.20-148,682.40-29,003.20

Finding the Fourth Proportional to 99,131.20, 148,682.40 and 29,003.20

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Solution

The fourth proportional to 99,131.20, 148,682.40 and 29,003.20 is: 43,500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,131.20 : 148,682.40 = 29,003.20 : x
  2. Step 2: Convert to fraction form
    99,131.20/148,682.40 = 29,003.20/x
  3. Step 3: Cross multiply
    99,131.20x = 148,682.40 × 29,003.20
  4. Step 4: Simplify right side
    99,131.20x = 4,312,265,383.68
  5. Step 5: Solve for x
    x = 4,312,265,383.68/99,131.20
  6. Step 6: Final answer
    x = 43,500.59

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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.