Home / 136,628.80-188,562.24-80,087.68

Finding the Fourth Proportional to 136,628.80, 188,562.24 and 80,087.68

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Solution

The fourth proportional to 136,628.80, 188,562.24 and 80,087.68 is: 110,529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,628.80 : 188,562.24 = 80,087.68 : x
  2. Step 2: Convert to fraction form
    136,628.80/188,562.24 = 80,087.68/x
  3. Step 3: Cross multiply
    136,628.80x = 188,562.24 × 80,087.68
  4. Step 4: Simplify right side
    136,628.80x = 15,101,512,337.20
  5. Step 5: Solve for x
    x = 15,101,512,337.20/136,628.80
  6. Step 6: Final answer
    x = 110,529.50

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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.