Home / 136,608.15-188,520.07-76,182.62

Finding the Fourth Proportional to 136,608.15, 188,520.07 and 76,182.62

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Solution

The fourth proportional to 136,608.15, 188,520.07 and 76,182.62 is: 105,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,608.15 : 188,520.07 = 76,182.62 : x
  2. Step 2: Convert to fraction form
    136,608.15/188,520.07 = 76,182.62/x
  3. Step 3: Cross multiply
    136,608.15x = 188,520.07 × 76,182.62
  4. Step 4: Simplify right side
    136,608.15x = 14,361,951,912.58
  5. Step 5: Solve for x
    x = 14,361,951,912.58/136,608.15
  6. Step 6: Final answer
    x = 105,132.47

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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.