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Finding the Fourth Proportional to 185,604.22, 256,134.52 and 100,721.26

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Solution

The fourth proportional to 185,604.22, 256,134.52 and 100,721.26 is: 138,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,604.22 : 256,134.52 = 100,721.26 : x
  2. Step 2: Convert to fraction form
    185,604.22/256,134.52 = 100,721.26/x
  3. Step 3: Cross multiply
    185,604.22x = 256,134.52 × 100,721.26
  4. Step 4: Simplify right side
    185,604.22x = 25,798,191,583.90
  5. Step 5: Solve for x
    x = 25,798,191,583.90/185,604.22
  6. Step 6: Final answer
    x = 138,995.72

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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.