Home / 186,040.80-279,061.20-126,165.60

Finding the Fourth Proportional to 186,040.80, 279,061.20 and 126,165.60

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Solution

The fourth proportional to 186,040.80, 279,061.20 and 126,165.60 is: 189,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,040.80 : 279,061.20 = 126,165.60 : x
  2. Step 2: Convert to fraction form
    186,040.80/279,061.20 = 126,165.60/x
  3. Step 3: Cross multiply
    186,040.80x = 279,061.20 × 126,165.60
  4. Step 4: Simplify right side
    186,040.80x = 35,207,923,734.72
  5. Step 5: Solve for x
    x = 35,207,923,734.72/186,040.80
  6. Step 6: Final answer
    x = 189,248.40

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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.