Home / 187,386.20-280,982.10-68,996.60

Finding the Fourth Proportional to 187,386.20, 280,982.10 and 68,996.60

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Solution

The fourth proportional to 187,386.20, 280,982.10 and 68,996.60 is: 103,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,386.20 : 280,982.10 = 68,996.60 : x
  2. Step 2: Convert to fraction form
    187,386.20/280,982.10 = 68,996.60/x
  3. Step 3: Cross multiply
    187,386.20x = 280,982.10 × 68,996.60
  4. Step 4: Simplify right side
    187,386.20x = 19,386,809,560.86
  5. Step 5: Solve for x
    x = 19,386,809,560.86/187,386.20
  6. Step 6: Final answer
    x = 103,459.11

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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.