Home / 140,595.15-194,032.80-80,184.78

Finding the Fourth Proportional to 140,595.15, 194,032.80 and 80,184.78

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Solution

The fourth proportional to 140,595.15, 194,032.80 and 80,184.78 is: 110,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,595.15 : 194,032.80 = 80,184.78 : x
  2. Step 2: Convert to fraction form
    140,595.15/194,032.80 = 80,184.78/x
  3. Step 3: Cross multiply
    140,595.15x = 194,032.80 × 80,184.78
  4. Step 4: Simplify right side
    140,595.15x = 15,558,477,380.78
  5. Step 5: Solve for x
    x = 15,558,477,380.78/140,595.15
  6. Step 6: Final answer
    x = 110,661.55

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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.