Home / 126,701.74-189,921.39-104,279.52

Finding the Fourth Proportional to 126,701.74, 189,921.39 and 104,279.52

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Solution

The fourth proportional to 126,701.74, 189,921.39 and 104,279.52 is: 156,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,701.74 : 189,921.39 = 104,279.52 : x
  2. Step 2: Convert to fraction form
    126,701.74/189,921.39 = 104,279.52/x
  3. Step 3: Cross multiply
    126,701.74x = 189,921.39 × 104,279.52
  4. Step 4: Simplify right side
    126,701.74x = 19,804,911,386.93
  5. Step 5: Solve for x
    x = 19,804,911,386.93/126,701.74
  6. Step 6: Final answer
    x = 156,311.28

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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.