Home / 187,712.02-258,979.20-107,082.79

Finding the Fourth Proportional to 187,712.02, 258,979.20 and 107,082.79

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Solution

The fourth proportional to 187,712.02, 258,979.20 and 107,082.79 is: 147,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,712.02 : 258,979.20 = 107,082.79 : x
  2. Step 2: Convert to fraction form
    187,712.02/258,979.20 = 107,082.79/x
  3. Step 3: Cross multiply
    187,712.02x = 258,979.20 × 107,082.79
  4. Step 4: Simplify right side
    187,712.02x = 27,732,215,287.97
  5. Step 5: Solve for x
    x = 27,732,215,287.97/187,712.02
  6. Step 6: Final answer
    x = 147,738.09

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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.