Home / 134,161.42-185,102.34-80,426.83

Finding the Fourth Proportional to 134,161.42, 185,102.34 and 80,426.83

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Solution

The fourth proportional to 134,161.42, 185,102.34 and 80,426.83 is: 110,964.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,161.42 : 185,102.34 = 80,426.83 : x
  2. Step 2: Convert to fraction form
    134,161.42/185,102.34 = 80,426.83/x
  3. Step 3: Cross multiply
    134,161.42x = 185,102.34 × 80,426.83
  4. Step 4: Simplify right side
    134,161.42x = 14,887,194,431.78
  5. Step 5: Solve for x
    x = 14,887,194,431.78/134,161.42
  6. Step 6: Final answer
    x = 110,964.79

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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.