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Finding the Fourth Proportional to 124,721.64, 187,145.64 and 54,601.56

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Solution

The fourth proportional to 124,721.64, 187,145.64 and 54,601.56 is: 81,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,721.64 : 187,145.64 = 54,601.56 : x
  2. Step 2: Convert to fraction form
    124,721.64/187,145.64 = 54,601.56/x
  3. Step 3: Cross multiply
    124,721.64x = 187,145.64 × 54,601.56
  4. Step 4: Simplify right side
    124,721.64x = 10,218,443,891.20
  5. Step 5: Solve for x
    x = 10,218,443,891.20/124,721.64
  6. Step 6: Final answer
    x = 81,930.00

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1.5x scale

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.