Home / 136,315.20-188,116.92-75,888.48

Finding the Fourth Proportional to 136,315.20, 188,116.92 and 75,888.48

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Solution

The fourth proportional to 136,315.20, 188,116.92 and 75,888.48 is: 104,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,315.20 : 188,116.92 = 75,888.48 : x
  2. Step 2: Convert to fraction form
    136,315.20/188,116.92 = 75,888.48/x
  3. Step 3: Cross multiply
    136,315.20x = 188,116.92 × 75,888.48
  4. Step 4: Simplify right side
    136,315.20x = 14,275,907,121.08
  5. Step 5: Solve for x
    x = 14,275,907,121.08/136,315.20
  6. Step 6: Final answer
    x = 104,727.18

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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.