Home / 185,787.77-256,393.17-105,213.56

Finding the Fourth Proportional to 185,787.77, 256,393.17 and 105,213.56

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Solution

The fourth proportional to 185,787.77, 256,393.17 and 105,213.56 is: 145,198.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,787.77 : 256,393.17 = 105,213.56 : x
  2. Step 2: Convert to fraction form
    185,787.77/256,393.17 = 105,213.56/x
  3. Step 3: Cross multiply
    185,787.77x = 256,393.17 × 105,213.56
  4. Step 4: Simplify right side
    185,787.77x = 26,976,036,893.42
  5. Step 5: Solve for x
    x = 26,976,036,893.42/185,787.77
  6. Step 6: Final answer
    x = 145,198.13

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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.