Home / 134,405.19-185,401.92-84,016.71

Finding the Fourth Proportional to 134,405.19, 185,401.92 and 84,016.71

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Solution

The fourth proportional to 134,405.19, 185,401.92 and 84,016.71 is: 115,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,405.19 : 185,401.92 = 84,016.71 : x
  2. Step 2: Convert to fraction form
    134,405.19/185,401.92 = 84,016.71/x
  3. Step 3: Cross multiply
    134,405.19x = 185,401.92 × 84,016.71
  4. Step 4: Simplify right side
    134,405.19x = 15,576,859,346.08
  5. Step 5: Solve for x
    x = 15,576,859,346.08/134,405.19
  6. Step 6: Final answer
    x = 115,894.78

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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.