Home / 185,689.41-256,253.45-105,115.17

Finding the Fourth Proportional to 185,689.41, 256,253.45 and 105,115.17

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Solution

The fourth proportional to 185,689.41, 256,253.45 and 105,115.17 is: 145,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,689.41 : 256,253.45 = 105,115.17 : x
  2. Step 2: Convert to fraction form
    185,689.41/256,253.45 = 105,115.17/x
  3. Step 3: Cross multiply
    185,689.41x = 256,253.45 × 105,115.17
  4. Step 4: Simplify right side
    185,689.41x = 26,936,124,249.42
  5. Step 5: Solve for x
    x = 26,936,124,249.42/185,689.41
  6. Step 6: Final answer
    x = 145,060.10

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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.