Home / 91,254.96-125,017.14-87,843.54

Finding the Fourth Proportional to 91,254.96, 125,017.14 and 87,843.54

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Solution

The fourth proportional to 91,254.96, 125,017.14 and 87,843.54 is: 120,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,254.96 : 125,017.14 = 87,843.54 : x
  2. Step 2: Convert to fraction form
    91,254.96/125,017.14 = 87,843.54/x
  3. Step 3: Cross multiply
    91,254.96x = 125,017.14 × 87,843.54
  4. Step 4: Simplify right side
    91,254.96x = 10,981,948,138.28
  5. Step 5: Solve for x
    x = 10,981,948,138.28/91,254.96
  6. Step 6: Final answer
    x = 120,343.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.