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Finding the Fourth Proportional to 187,245.92, 258,493.20 and 127,134.56

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Solution

The fourth proportional to 187,245.92, 258,493.20 and 127,134.56 is: 175,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,245.92 : 258,493.20 = 127,134.56 : x
  2. Step 2: Convert to fraction form
    187,245.92/258,493.20 = 127,134.56/x
  3. Step 3: Cross multiply
    187,245.92x = 258,493.20 × 127,134.56
  4. Step 4: Simplify right side
    187,245.92x = 32,863,419,244.99
  5. Step 5: Solve for x
    x = 32,863,419,244.99/187,245.92
  6. Step 6: Final answer
    x = 175,509.40

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1.5x scale

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.