Home / 185,788.35-256,387.83-105,215.85

Finding the Fourth Proportional to 185,788.35, 256,387.83 and 105,215.85

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Solution

The fourth proportional to 185,788.35, 256,387.83 and 105,215.85 is: 145,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,788.35 : 256,387.83 = 105,215.85 : x
  2. Step 2: Convert to fraction form
    185,788.35/256,387.83 = 105,215.85/x
  3. Step 3: Cross multiply
    185,788.35x = 256,387.83 × 105,215.85
  4. Step 4: Simplify right side
    185,788.35x = 26,976,063,463.11
  5. Step 5: Solve for x
    x = 26,976,063,463.11/185,788.35
  6. Step 6: Final answer
    x = 145,197.82

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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.