Home / 150,811.50-225,872.75-71,981.08

Finding the Fourth Proportional to 150,811.50, 225,872.75 and 71,981.08

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Solution

The fourth proportional to 150,811.50, 225,872.75 and 71,981.08 is: 107,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,811.50 : 225,872.75 = 71,981.08 : x
  2. Step 2: Convert to fraction form
    150,811.50/225,872.75 = 71,981.08/x
  3. Step 3: Cross multiply
    150,811.50x = 225,872.75 × 71,981.08
  4. Step 4: Simplify right side
    150,811.50x = 16,258,564,738.11
  5. Step 5: Solve for x
    x = 16,258,564,738.11/150,811.50
  6. Step 6: Final answer
    x = 107,807.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.