Home / 186,023.57-279,029.13-80,842.55

Finding the Fourth Proportional to 186,023.57, 279,029.13 and 80,842.55

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Solution

The fourth proportional to 186,023.57, 279,029.13 and 80,842.55 is: 121,261.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,023.57 : 279,029.13 = 80,842.55 : x
  2. Step 2: Convert to fraction form
    186,023.57/279,029.13 = 80,842.55/x
  3. Step 3: Cross multiply
    186,023.57x = 279,029.13 × 80,842.55
  4. Step 4: Simplify right side
    186,023.57x = 22,557,424,998.34
  5. Step 5: Solve for x
    x = 22,557,424,998.34/186,023.57
  6. Step 6: Final answer
    x = 121,261.12

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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.