Home / 140,787.92-194,287.56-77,124.32

Finding the Fourth Proportional to 140,787.92, 194,287.56 and 77,124.32

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Solution

The fourth proportional to 140,787.92, 194,287.56 and 77,124.32 is: 106,431.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,787.92 : 194,287.56 = 77,124.32 : x
  2. Step 2: Convert to fraction form
    140,787.92/194,287.56 = 77,124.32/x
  3. Step 3: Cross multiply
    140,787.92x = 194,287.56 × 77,124.32
  4. Step 4: Simplify right side
    140,787.92x = 14,984,295,949.46
  5. Step 5: Solve for x
    x = 14,984,295,949.46/140,787.92
  6. Step 6: Final answer
    x = 106,431.69

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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.