Home / 140,742.80-194,238.93-80,322.54

Finding the Fourth Proportional to 140,742.80, 194,238.93 and 80,322.54

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Solution

The fourth proportional to 140,742.80, 194,238.93 and 80,322.54 is: 110,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.80 : 194,238.93 = 80,322.54 : x
  2. Step 2: Convert to fraction form
    140,742.80/194,238.93 = 80,322.54/x
  3. Step 3: Cross multiply
    140,742.80x = 194,238.93 × 80,322.54
  4. Step 4: Simplify right side
    140,742.80x = 15,601,763,253.29
  5. Step 5: Solve for x
    x = 15,601,763,253.29/140,742.80
  6. Step 6: Final answer
    x = 110,853.01

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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.