Home / 136,777.13-188,783.93-80,206.73

Finding the Fourth Proportional to 136,777.13, 188,783.93 and 80,206.73

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Solution

The fourth proportional to 136,777.13, 188,783.93 and 80,206.73 is: 110,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,777.13 : 188,783.93 = 80,206.73 : x
  2. Step 2: Convert to fraction form
    136,777.13/188,783.93 = 80,206.73/x
  3. Step 3: Cross multiply
    136,777.13x = 188,783.93 × 80,206.73
  4. Step 4: Simplify right side
    136,777.13x = 15,141,741,701.85
  5. Step 5: Solve for x
    x = 15,141,741,701.85/136,777.13
  6. Step 6: Final answer
    x = 110,703.75

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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.