Home / 126,309.47-189,300.06-51,342.28

Finding the Fourth Proportional to 126,309.47, 189,300.06 and 51,342.28

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Solution

The fourth proportional to 126,309.47, 189,300.06 and 51,342.28 is: 76,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,309.47 : 189,300.06 = 51,342.28 : x
  2. Step 2: Convert to fraction form
    126,309.47/189,300.06 = 51,342.28/x
  3. Step 3: Cross multiply
    126,309.47x = 189,300.06 × 51,342.28
  4. Step 4: Simplify right side
    126,309.47x = 9,719,096,211.29
  5. Step 5: Solve for x
    x = 9,719,096,211.29/126,309.47
  6. Step 6: Final answer
    x = 76,946.70

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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.