Home / 136,230.24-188,020.26-79,630.68

Finding the Fourth Proportional to 136,230.24, 188,020.26 and 79,630.68

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Solution

The fourth proportional to 136,230.24, 188,020.26 and 79,630.68 is: 109,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,230.24 : 188,020.26 = 79,630.68 : x
  2. Step 2: Convert to fraction form
    136,230.24/188,020.26 = 79,630.68/x
  3. Step 3: Cross multiply
    136,230.24x = 188,020.26 × 79,630.68
  4. Step 4: Simplify right side
    136,230.24x = 14,972,181,157.58
  5. Step 5: Solve for x
    x = 14,972,181,157.58/136,230.24
  6. Step 6: Final answer
    x = 109,903.51

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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.