Home / 126,310.47-189,301.56-51,343.28

Finding the Fourth Proportional to 126,310.47, 189,301.56 and 51,343.28

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Solution

The fourth proportional to 126,310.47, 189,301.56 and 51,343.28 is: 76,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,310.47 : 189,301.56 = 51,343.28 : x
  2. Step 2: Convert to fraction form
    126,310.47/189,301.56 = 51,343.28/x
  3. Step 3: Cross multiply
    126,310.47x = 189,301.56 × 51,343.28
  4. Step 4: Simplify right side
    126,310.47x = 9,719,362,999.52
  5. Step 5: Solve for x
    x = 9,719,362,999.52/126,310.47
  6. Step 6: Final answer
    x = 76,948.20

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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.