Home / 136,290.96-188,081.54-75,860.31

Finding the Fourth Proportional to 136,290.96, 188,081.54 and 75,860.31

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Solution

The fourth proportional to 136,290.96, 188,081.54 and 75,860.31 is: 104,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,290.96 : 188,081.54 = 75,860.31 : x
  2. Step 2: Convert to fraction form
    136,290.96/188,081.54 = 75,860.31/x
  3. Step 3: Cross multiply
    136,290.96x = 188,081.54 × 75,860.31
  4. Step 4: Simplify right side
    136,290.96x = 14,267,923,550.38
  5. Step 5: Solve for x
    x = 14,267,923,550.38/136,290.96
  6. Step 6: Final answer
    x = 104,687.23

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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.