Home / 136,231.74-188,022.33-79,632.18

Finding the Fourth Proportional to 136,231.74, 188,022.33 and 79,632.18

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Solution

The fourth proportional to 136,231.74, 188,022.33 and 79,632.18 is: 109,905.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,231.74 : 188,022.33 = 79,632.18 : x
  2. Step 2: Convert to fraction form
    136,231.74/188,022.33 = 79,632.18/x
  3. Step 3: Cross multiply
    136,231.74x = 188,022.33 × 79,632.18
  4. Step 4: Simplify right side
    136,231.74x = 14,972,628,026.58
  5. Step 5: Solve for x
    x = 14,972,628,026.58/136,231.74
  6. Step 6: Final answer
    x = 109,905.58

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1.5x scale

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.