Home / 185,755.51-256,343.59-105,198.72

Finding the Fourth Proportional to 185,755.51, 256,343.59 and 105,198.72

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Solution

The fourth proportional to 185,755.51, 256,343.59 and 105,198.72 is: 145,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,755.51 : 256,343.59 = 105,198.72 : x
  2. Step 2: Convert to fraction form
    185,755.51/256,343.59 = 105,198.72/x
  3. Step 3: Cross multiply
    185,755.51x = 256,343.59 × 105,198.72
  4. Step 4: Simplify right side
    185,755.51x = 26,967,016,718.41
  5. Step 5: Solve for x
    x = 26,967,016,718.41/185,755.51
  6. Step 6: Final answer
    x = 145,174.79

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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.