Home / 126,499.41-189,684.63-42,229.28

Finding the Fourth Proportional to 126,499.41, 189,684.63 and 42,229.28

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Solution

The fourth proportional to 126,499.41, 189,684.63 and 42,229.28 is: 63,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,499.41 : 189,684.63 = 42,229.28 : x
  2. Step 2: Convert to fraction form
    126,499.41/189,684.63 = 42,229.28/x
  3. Step 3: Cross multiply
    126,499.41x = 189,684.63 × 42,229.28
  4. Step 4: Simplify right side
    126,499.41x = 8,010,244,403.54
  5. Step 5: Solve for x
    x = 8,010,244,403.54/126,499.41
  6. Step 6: Final answer
    x = 63,322.39

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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.