Home / 185,788.42-256,388.08-105,215.96

Finding the Fourth Proportional to 185,788.42, 256,388.08 and 105,215.96

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Solution

The fourth proportional to 185,788.42, 256,388.08 and 105,215.96 is: 145,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,788.42 : 256,388.08 = 105,215.96 : x
  2. Step 2: Convert to fraction form
    185,788.42/256,388.08 = 105,215.96/x
  3. Step 3: Cross multiply
    185,788.42x = 256,388.08 × 105,215.96
  4. Step 4: Simplify right side
    185,788.42x = 26,976,117,969.76
  5. Step 5: Solve for x
    x = 26,976,117,969.76/185,788.42
  6. Step 6: Final answer
    x = 145,198.06

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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.