Home / 185,861.42-256,488.09-100,977.74

Finding the Fourth Proportional to 185,861.42, 256,488.09 and 100,977.74

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Solution

The fourth proportional to 185,861.42, 256,488.09 and 100,977.74 is: 139,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,861.42 : 256,488.09 = 100,977.74 : x
  2. Step 2: Convert to fraction form
    185,861.42/256,488.09 = 100,977.74/x
  3. Step 3: Cross multiply
    185,861.42x = 256,488.09 × 100,977.74
  4. Step 4: Simplify right side
    185,861.42x = 25,899,587,665.12
  5. Step 5: Solve for x
    x = 25,899,587,665.12/185,861.42
  6. Step 6: Final answer
    x = 139,348.92

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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.