Home / 136,395.14-188,231.15-75,965.81

Finding the Fourth Proportional to 136,395.14, 188,231.15 and 75,965.81

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Solution

The fourth proportional to 136,395.14, 188,231.15 and 75,965.81 is: 104,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,395.14 : 188,231.15 = 75,965.81 : x
  2. Step 2: Convert to fraction form
    136,395.14/188,231.15 = 75,965.81/x
  3. Step 3: Cross multiply
    136,395.14x = 188,231.15 × 75,965.81
  4. Step 4: Simplify right side
    136,395.14x = 14,299,131,025.74
  5. Step 5: Solve for x
    x = 14,299,131,025.74/136,395.14
  6. Step 6: Final answer
    x = 104,836.08

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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.