Home / 140,787.64-194,291.78-77,125.42

Finding the Fourth Proportional to 140,787.64, 194,291.78 and 77,125.42

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Solution

The fourth proportional to 140,787.64, 194,291.78 and 77,125.42 is: 106,435.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,787.64 : 194,291.78 = 77,125.42 : x
  2. Step 2: Convert to fraction form
    140,787.64/194,291.78 = 77,125.42/x
  3. Step 3: Cross multiply
    140,787.64x = 194,291.78 × 77,125.42
  4. Step 4: Simplify right side
    140,787.64x = 14,984,834,263.69
  5. Step 5: Solve for x
    x = 14,984,834,263.69/140,787.64
  6. Step 6: Final answer
    x = 106,435.72

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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.