Home / 99,740.72-149,481.82-40,507.58

Finding the Fourth Proportional to 99,740.72, 149,481.82 and 40,507.58

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Solution

The fourth proportional to 99,740.72, 149,481.82 and 40,507.58 is: 60,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,740.72 : 149,481.82 = 40,507.58 : x
  2. Step 2: Convert to fraction form
    99,740.72/149,481.82 = 40,507.58/x
  3. Step 3: Cross multiply
    99,740.72x = 149,481.82 × 40,507.58
  4. Step 4: Simplify right side
    99,740.72x = 6,055,146,782.20
  5. Step 5: Solve for x
    x = 6,055,146,782.20/99,740.72
  6. Step 6: Final answer
    x = 60,708.87

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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.