Home / 129,916.30-179,456.62-104,518.32

Finding the Fourth Proportional to 129,916.30, 179,456.62 and 104,518.32

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Solution

The fourth proportional to 129,916.30, 179,456.62 and 104,518.32 is: 144,373.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,916.30 : 179,456.62 = 104,518.32 : x
  2. Step 2: Convert to fraction form
    129,916.30/179,456.62 = 104,518.32/x
  3. Step 3: Cross multiply
    129,916.30x = 179,456.62 × 104,518.32
  4. Step 4: Simplify right side
    129,916.30x = 18,756,503,912.69
  5. Step 5: Solve for x
    x = 18,756,503,912.69/129,916.30
  6. Step 6: Final answer
    x = 144,373.76

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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.