Home / 140,783.92-194,282.04-77,120.32

Finding the Fourth Proportional to 140,783.92, 194,282.04 and 77,120.32

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Solution

The fourth proportional to 140,783.92, 194,282.04 and 77,120.32 is: 106,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,783.92 : 194,282.04 = 77,120.32 : x
  2. Step 2: Convert to fraction form
    140,783.92/194,282.04 = 77,120.32/x
  3. Step 3: Cross multiply
    140,783.92x = 194,282.04 × 77,120.32
  4. Step 4: Simplify right side
    140,783.92x = 14,983,093,095.05
  5. Step 5: Solve for x
    x = 14,983,093,095.05/140,783.92
  6. Step 6: Final answer
    x = 106,426.17

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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.