Home / 140,793.51-194,295.75-77,131.35

Finding the Fourth Proportional to 140,793.51, 194,295.75 and 77,131.35

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Solution

The fourth proportional to 140,793.51, 194,295.75 and 77,131.35 is: 106,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,793.51 : 194,295.75 = 77,131.35 : x
  2. Step 2: Convert to fraction form
    140,793.51/194,295.75 = 77,131.35/x
  3. Step 3: Cross multiply
    140,793.51x = 194,295.75 × 77,131.35
  4. Step 4: Simplify right side
    140,793.51x = 14,986,293,496.76
  5. Step 5: Solve for x
    x = 14,986,293,496.76/140,793.51
  6. Step 6: Final answer
    x = 106,441.65

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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.