Home / 187,354.20-280,934.10-68,964.60

Finding the Fourth Proportional to 187,354.20, 280,934.10 and 68,964.60

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Solution

The fourth proportional to 187,354.20, 280,934.10 and 68,964.60 is: 103,411.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,354.20 : 280,934.10 = 68,964.60 : x
  2. Step 2: Convert to fraction form
    187,354.20/280,934.10 = 68,964.60/x
  3. Step 3: Cross multiply
    187,354.20x = 280,934.10 × 68,964.60
  4. Step 4: Simplify right side
    187,354.20x = 19,374,507,832.86
  5. Step 5: Solve for x
    x = 19,374,507,832.86/187,354.20
  6. Step 6: Final answer
    x = 103,411.12

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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.