Home / 107,658.36-148,414.56-75,728.16

Finding the Fourth Proportional to 107,658.36, 148,414.56 and 75,728.16

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Solution

The fourth proportional to 107,658.36, 148,414.56 and 75,728.16 is: 104,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,658.36 : 148,414.56 = 75,728.16 : x
  2. Step 2: Convert to fraction form
    107,658.36/148,414.56 = 75,728.16/x
  3. Step 3: Cross multiply
    107,658.36x = 148,414.56 × 75,728.16
  4. Step 4: Simplify right side
    107,658.36x = 11,239,161,546.01
  5. Step 5: Solve for x
    x = 11,239,161,546.01/107,658.36
  6. Step 6: Final answer
    x = 104,396.55

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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.