Home / 126,619.36-189,865.76-42,350.16

Finding the Fourth Proportional to 126,619.36, 189,865.76 and 42,350.16

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Solution

The fourth proportional to 126,619.36, 189,865.76 and 42,350.16 is: 63,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.36 : 189,865.76 = 42,350.16 : x
  2. Step 2: Convert to fraction form
    126,619.36/189,865.76 = 42,350.16/x
  3. Step 3: Cross multiply
    126,619.36x = 189,865.76 × 42,350.16
  4. Step 4: Simplify right side
    126,619.36x = 8,040,845,314.52
  5. Step 5: Solve for x
    x = 8,040,845,314.52/126,619.36
  6. Step 6: Final answer
    x = 63,504.07

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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.