Home / 187,030.32-280,614.60-68,778.96

Finding the Fourth Proportional to 187,030.32, 280,614.60 and 68,778.96

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Solution

The fourth proportional to 187,030.32, 280,614.60 and 68,778.96 is: 103,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,030.32 : 280,614.60 = 68,778.96 : x
  2. Step 2: Convert to fraction form
    187,030.32/280,614.60 = 68,778.96/x
  3. Step 3: Cross multiply
    187,030.32x = 280,614.60 × 68,778.96
  4. Step 4: Simplify right side
    187,030.32x = 19,300,380,348.82
  5. Step 5: Solve for x
    x = 19,300,380,348.82/187,030.32
  6. Step 6: Final answer
    x = 103,193.86

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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.