Home / 185,608.11-256,139.18-100,725.17

Finding the Fourth Proportional to 185,608.11, 256,139.18 and 100,725.17

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Solution

The fourth proportional to 185,608.11, 256,139.18 and 100,725.17 is: 139,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,608.11 : 256,139.18 = 100,725.17 : x
  2. Step 2: Convert to fraction form
    185,608.11/256,139.18 = 100,725.17/x
  3. Step 3: Cross multiply
    185,608.11x = 256,139.18 × 100,725.17
  4. Step 4: Simplify right side
    185,608.11x = 25,799,663,341.32
  5. Step 5: Solve for x
    x = 25,799,663,341.32/185,608.11
  6. Step 6: Final answer
    x = 139,000.73

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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.