Home / 131,984.28-182,145.42-75,406.68

Finding the Fourth Proportional to 131,984.28, 182,145.42 and 75,406.68

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Solution

The fourth proportional to 131,984.28, 182,145.42 and 75,406.68 is: 104,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,984.28 : 182,145.42 = 75,406.68 : x
  2. Step 2: Convert to fraction form
    131,984.28/182,145.42 = 75,406.68/x
  3. Step 3: Cross multiply
    131,984.28x = 182,145.42 × 75,406.68
  4. Step 4: Simplify right side
    131,984.28x = 13,734,981,399.41
  5. Step 5: Solve for x
    x = 13,734,981,399.41/131,984.28
  6. Step 6: Final answer
    x = 104,065.28

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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.