Home / 136,662.24-188,585.76-79,297.12

Finding the Fourth Proportional to 136,662.24, 188,585.76 and 79,297.12

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Solution

The fourth proportional to 136,662.24, 188,585.76 and 79,297.12 is: 109,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,662.24 : 188,585.76 = 79,297.12 : x
  2. Step 2: Convert to fraction form
    136,662.24/188,585.76 = 79,297.12/x
  3. Step 3: Cross multiply
    136,662.24x = 188,585.76 × 79,297.12
  4. Step 4: Simplify right side
    136,662.24x = 14,954,307,641.01
  5. Step 5: Solve for x
    x = 14,954,307,641.01/136,662.24
  6. Step 6: Final answer
    x = 109,425.31

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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.