Home / 177,821.61-266,940.78-140,406.90

Finding the Fourth Proportional to 177,821.61, 266,940.78 and 140,406.90

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Solution

The fourth proportional to 177,821.61, 266,940.78 and 140,406.90 is: 210,774.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,821.61 : 266,940.78 = 140,406.90 : x
  2. Step 2: Convert to fraction form
    177,821.61/266,940.78 = 140,406.90/x
  3. Step 3: Cross multiply
    177,821.61x = 266,940.78 × 140,406.90
  4. Step 4: Simplify right side
    177,821.61x = 37,480,327,403.38
  5. Step 5: Solve for x
    x = 37,480,327,403.38/177,821.61
  6. Step 6: Final answer
    x = 210,774.87

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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.