Home / 131,105.28-180,924.90-74,527.56

Finding the Fourth Proportional to 131,105.28, 180,924.90 and 74,527.56

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Solution

The fourth proportional to 131,105.28, 180,924.90 and 74,527.56 is: 102,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,105.28 : 180,924.90 = 74,527.56 : x
  2. Step 2: Convert to fraction form
    131,105.28/180,924.90 = 74,527.56/x
  3. Step 3: Cross multiply
    131,105.28x = 180,924.90 × 74,527.56
  4. Step 4: Simplify right side
    131,105.28x = 13,483,891,340.24
  5. Step 5: Solve for x
    x = 13,483,891,340.24/131,105.28
  6. Step 6: Final answer
    x = 102,847.81

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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.