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Finding the Fourth Proportional to 130,340.84, 179,874.15 and 73,751

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Solution

The fourth proportional to 130,340.84, 179,874.15 and 73,751 is: 101,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,340.84 : 179,874.15 = 73,751 : x
  2. Step 2: Convert to fraction form
    130,340.84/179,874.15 = 73,751/x
  3. Step 3: Cross multiply
    130,340.84x = 179,874.15 × 73,751
  4. Step 4: Simplify right side
    130,340.84x = 13,265,898,436.65
  5. Step 5: Solve for x
    x = 13,265,898,436.65/130,340.84
  6. Step 6: Final answer
    x = 101,778.52

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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.