Home / 119,844.34-165,378.19-66,129.23

Finding the Fourth Proportional to 119,844.34, 165,378.19 and 66,129.23

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Solution

The fourth proportional to 119,844.34, 165,378.19 and 66,129.23 is: 91,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,844.34 : 165,378.19 = 66,129.23 : x
  2. Step 2: Convert to fraction form
    119,844.34/165,378.19 = 66,129.23/x
  3. Step 3: Cross multiply
    119,844.34x = 165,378.19 × 66,129.23
  4. Step 4: Simplify right side
    119,844.34x = 10,936,332,363.49
  5. Step 5: Solve for x
    x = 10,936,332,363.49/119,844.34
  6. Step 6: Final answer
    x = 91,254.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.