Home / 127,826.92-176,401.74-74,143.72

Finding the Fourth Proportional to 127,826.92, 176,401.74 and 74,143.72

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Solution

The fourth proportional to 127,826.92, 176,401.74 and 74,143.72 is: 102,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,826.92 : 176,401.74 = 74,143.72 : x
  2. Step 2: Convert to fraction form
    127,826.92/176,401.74 = 74,143.72/x
  3. Step 3: Cross multiply
    127,826.92x = 176,401.74 × 74,143.72
  4. Step 4: Simplify right side
    127,826.92x = 13,079,081,218.07
  5. Step 5: Solve for x
    x = 13,079,081,218.07/127,826.92
  6. Step 6: Final answer
    x = 102,318.68

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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.