Home / 187,487.20-258,728.88-102,602.56

Finding the Fourth Proportional to 187,487.20, 258,728.88 and 102,602.56

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Solution

The fourth proportional to 187,487.20, 258,728.88 and 102,602.56 is: 141,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,487.20 : 258,728.88 = 102,602.56 : x
  2. Step 2: Convert to fraction form
    187,487.20/258,728.88 = 102,602.56/x
  3. Step 3: Cross multiply
    187,487.20x = 258,728.88 × 102,602.56
  4. Step 4: Simplify right side
    187,487.20x = 26,546,245,433.93
  5. Step 5: Solve for x
    x = 26,546,245,433.93/187,487.20
  6. Step 6: Final answer
    x = 141,589.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.