Home / 186,517.55-279,875.35-81,344.72

Finding the Fourth Proportional to 186,517.55, 279,875.35 and 81,344.72

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Solution

The fourth proportional to 186,517.55, 279,875.35 and 81,344.72 is: 122,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,517.55 : 279,875.35 = 81,344.72 : x
  2. Step 2: Convert to fraction form
    186,517.55/279,875.35 = 81,344.72/x
  3. Step 3: Cross multiply
    186,517.55x = 279,875.35 × 81,344.72
  4. Step 4: Simplify right side
    186,517.55x = 22,766,382,782.02
  5. Step 5: Solve for x
    x = 22,766,382,782.02/186,517.55
  6. Step 6: Final answer
    x = 122,060.27

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1.5x scale

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.