Home / 159,696.24-220,371.78-99,265.34

Finding the Fourth Proportional to 159,696.24, 220,371.78 and 99,265.34

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Solution

The fourth proportional to 159,696.24, 220,371.78 and 99,265.34 is: 136,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,696.24 : 220,371.78 = 99,265.34 : x
  2. Step 2: Convert to fraction form
    159,696.24/220,371.78 = 99,265.34/x
  3. Step 3: Cross multiply
    159,696.24x = 220,371.78 × 99,265.34
  4. Step 4: Simplify right side
    159,696.24x = 21,875,278,566.25
  5. Step 5: Solve for x
    x = 21,875,278,566.25/159,696.24
  6. Step 6: Final answer
    x = 136,980.55

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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.