Home / 256,934.60-385,382.70-107,136.20

Finding the Fourth Proportional to 256,934.60, 385,382.70 and 107,136.20

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Solution

The fourth proportional to 256,934.60, 385,382.70 and 107,136.20 is: 160,696.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,934.60 : 385,382.70 = 107,136.20 : x
  2. Step 2: Convert to fraction form
    256,934.60/385,382.70 = 107,136.20/x
  3. Step 3: Cross multiply
    256,934.60x = 385,382.70 × 107,136.20
  4. Step 4: Simplify right side
    256,934.60x = 41,288,438,023.74
  5. Step 5: Solve for x
    x = 41,288,438,023.74/256,934.60
  6. Step 6: Final answer
    x = 160,696.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.