Home / 187,330.20-280,898.10-68,940.60

Finding the Fourth Proportional to 187,330.20, 280,898.10 and 68,940.60

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Solution

The fourth proportional to 187,330.20, 280,898.10 and 68,940.60 is: 103,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,330.20 : 280,898.10 = 68,940.60 : x
  2. Step 2: Convert to fraction form
    187,330.20/280,898.10 = 68,940.60/x
  3. Step 3: Cross multiply
    187,330.20x = 280,898.10 × 68,940.60
  4. Step 4: Simplify right side
    187,330.20x = 19,365,283,552.86
  5. Step 5: Solve for x
    x = 19,365,283,552.86/187,330.20
  6. Step 6: Final answer
    x = 103,375.13

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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.