Home / 185,642.15-256,179.31-100,757.39

Finding the Fourth Proportional to 185,642.15, 256,179.31 and 100,757.39

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Solution

The fourth proportional to 185,642.15, 256,179.31 and 100,757.39 is: 139,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,642.15 : 256,179.31 = 100,757.39 : x
  2. Step 2: Convert to fraction form
    185,642.15/256,179.31 = 100,757.39/x
  3. Step 3: Cross multiply
    185,642.15x = 256,179.31 × 100,757.39
  4. Step 4: Simplify right side
    185,642.15x = 25,811,957,114.81
  5. Step 5: Solve for x
    x = 25,811,957,114.81/185,642.15
  6. Step 6: Final answer
    x = 139,041.47

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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.