Home / 140,787.77-194,239.58-80,315.85

Finding the Fourth Proportional to 140,787.77, 194,239.58 and 80,315.85

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Solution

The fourth proportional to 140,787.77, 194,239.58 and 80,315.85 is: 110,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,787.77 : 194,239.58 = 80,315.85 : x
  2. Step 2: Convert to fraction form
    140,787.77/194,239.58 = 80,315.85/x
  3. Step 3: Cross multiply
    140,787.77x = 194,239.58 × 80,315.85
  4. Step 4: Simplify right side
    140,787.77x = 15,600,516,569.76
  5. Step 5: Solve for x
    x = 15,600,516,569.76/140,787.77
  6. Step 6: Final answer
    x = 110,808.75

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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.