Home / 115,872.24-159,917.10-70,576.80

Finding the Fourth Proportional to 115,872.24, 159,917.10 and 70,576.80

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Solution

The fourth proportional to 115,872.24, 159,917.10 and 70,576.80 is: 97,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,872.24 : 159,917.10 = 70,576.80 : x
  2. Step 2: Convert to fraction form
    115,872.24/159,917.10 = 70,576.80/x
  3. Step 3: Cross multiply
    115,872.24x = 159,917.10 × 70,576.80
  4. Step 4: Simplify right side
    115,872.24x = 11,286,437,183.28
  5. Step 5: Solve for x
    x = 11,286,437,183.28/115,872.24
  6. Step 6: Final answer
    x = 97,404.15

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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.