Home / 136,949.32-188,919.30-86,677.48

Finding the Fourth Proportional to 136,949.32, 188,919.30 and 86,677.48

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Solution

The fourth proportional to 136,949.32, 188,919.30 and 86,677.48 is: 119,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,949.32 : 188,919.30 = 86,677.48 : x
  2. Step 2: Convert to fraction form
    136,949.32/188,919.30 = 86,677.48/x
  3. Step 3: Cross multiply
    136,949.32x = 188,919.30 × 86,677.48
  4. Step 4: Simplify right side
    136,949.32x = 16,375,048,847.36
  5. Step 5: Solve for x
    x = 16,375,048,847.36/136,949.32
  6. Step 6: Final answer
    x = 119,570.14

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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.