Home / 136,664.28-188,597-76,233.36

Finding the Fourth Proportional to 136,664.28, 188,597 and 76,233.36

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Solution

The fourth proportional to 136,664.28, 188,597 and 76,233.36 is: 105,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.28 : 188,597 = 76,233.36 : x
  2. Step 2: Convert to fraction form
    136,664.28/188,597 = 76,233.36/x
  3. Step 3: Cross multiply
    136,664.28x = 188,597 × 76,233.36
  4. Step 4: Simplify right side
    136,664.28x = 14,377,382,995.92
  5. Step 5: Solve for x
    x = 14,377,382,995.92/136,664.28
  6. Step 6: Final answer
    x = 105,202.20

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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.