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Finding the Fourth Proportional to 187,077.80, 280,739.72 and 68,750.17

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Solution

The fourth proportional to 187,077.80, 280,739.72 and 68,750.17 is: 103,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,077.80 : 280,739.72 = 68,750.17 : x
  2. Step 2: Convert to fraction form
    187,077.80/280,739.72 = 68,750.17/x
  3. Step 3: Cross multiply
    187,077.80x = 280,739.72 × 68,750.17
  4. Step 4: Simplify right side
    187,077.80x = 19,300,902,945.78
  5. Step 5: Solve for x
    x = 19,300,902,945.78/187,077.80
  6. Step 6: Final answer
    x = 103,170.46

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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.