Home / 136,860.48-188,886.24-80,290.08

Finding the Fourth Proportional to 136,860.48, 188,886.24 and 80,290.08

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Solution

The fourth proportional to 136,860.48, 188,886.24 and 80,290.08 is: 110,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,860.48 : 188,886.24 = 80,290.08 : x
  2. Step 2: Convert to fraction form
    136,860.48/188,886.24 = 80,290.08/x
  3. Step 3: Cross multiply
    136,860.48x = 188,886.24 × 80,290.08
  4. Step 4: Simplify right side
    136,860.48x = 15,165,691,320.50
  5. Step 5: Solve for x
    x = 15,165,691,320.50/136,860.48
  6. Step 6: Final answer
    x = 110,811.33

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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.