Home / 126,386.28-189,468.36-51,569.43

Finding the Fourth Proportional to 126,386.28, 189,468.36 and 51,569.43

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Solution

The fourth proportional to 126,386.28, 189,468.36 and 51,569.43 is: 77,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,386.28 : 189,468.36 = 51,569.43 : x
  2. Step 2: Convert to fraction form
    126,386.28/189,468.36 = 51,569.43/x
  3. Step 3: Cross multiply
    126,386.28x = 189,468.36 × 51,569.43
  4. Step 4: Simplify right side
    126,386.28x = 9,770,775,328.23
  5. Step 5: Solve for x
    x = 9,770,775,328.23/126,386.28
  6. Step 6: Final answer
    x = 77,308.83

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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.