Home / 127,826.78-176,401.62-74,143.52

Finding the Fourth Proportional to 127,826.78, 176,401.62 and 74,143.52

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Solution

The fourth proportional to 127,826.78, 176,401.62 and 74,143.52 is: 102,318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,826.78 : 176,401.62 = 74,143.52 : x
  2. Step 2: Convert to fraction form
    127,826.78/176,401.62 = 74,143.52/x
  3. Step 3: Cross multiply
    127,826.78x = 176,401.62 × 74,143.52
  4. Step 4: Simplify right side
    127,826.78x = 13,079,037,040.50
  5. Step 5: Solve for x
    x = 13,079,037,040.50/127,826.78
  6. Step 6: Final answer
    x = 102,318.44

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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.