Home / 185,780.12-256,377.30-100,898.60

Finding the Fourth Proportional to 185,780.12, 256,377.30 and 100,898.60

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Solution

The fourth proportional to 185,780.12, 256,377.30 and 100,898.60 is: 139,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,780.12 : 256,377.30 = 100,898.60 : x
  2. Step 2: Convert to fraction form
    185,780.12/256,377.30 = 100,898.60/x
  3. Step 3: Cross multiply
    185,780.12x = 256,377.30 × 100,898.60
  4. Step 4: Simplify right side
    185,780.12x = 25,868,110,641.78
  5. Step 5: Solve for x
    x = 25,868,110,641.78/185,780.12
  6. Step 6: Final answer
    x = 139,240.47

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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.