Home / 126,407.01-189,625.09-42,178.35

Finding the Fourth Proportional to 126,407.01, 189,625.09 and 42,178.35

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Solution

The fourth proportional to 126,407.01, 189,625.09 and 42,178.35 is: 63,272.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,407.01 : 189,625.09 = 42,178.35 : x
  2. Step 2: Convert to fraction form
    126,407.01/189,625.09 = 42,178.35/x
  3. Step 3: Cross multiply
    126,407.01x = 189,625.09 × 42,178.35
  4. Step 4: Simplify right side
    126,407.01x = 7,998,073,414.80
  5. Step 5: Solve for x
    x = 7,998,073,414.80/126,407.01
  6. Step 6: Final answer
    x = 63,272.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.