Home / 243,625.28-336,205.38-136,201.28

Finding the Fourth Proportional to 243,625.28, 336,205.38 and 136,201.28

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Solution

The fourth proportional to 243,625.28, 336,205.38 and 136,201.28 is: 187,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,625.28 : 336,205.38 = 136,201.28 : x
  2. Step 2: Convert to fraction form
    243,625.28/336,205.38 = 136,201.28/x
  3. Step 3: Cross multiply
    243,625.28x = 336,205.38 × 136,201.28
  4. Step 4: Simplify right side
    243,625.28x = 45,791,603,098.89
  5. Step 5: Solve for x
    x = 45,791,603,098.89/243,625.28
  6. Step 6: Final answer
    x = 187,959.16

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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.