Home / 121,795.84-182,786.10-51,724.36

Finding the Fourth Proportional to 121,795.84, 182,786.10 and 51,724.36

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Solution

The fourth proportional to 121,795.84, 182,786.10 and 51,724.36 is: 77,625.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,795.84 : 182,786.10 = 51,724.36 : x
  2. Step 2: Convert to fraction form
    121,795.84/182,786.10 = 51,724.36/x
  3. Step 3: Cross multiply
    121,795.84x = 182,786.10 × 51,724.36
  4. Step 4: Simplify right side
    121,795.84x = 9,454,494,039.40
  5. Step 5: Solve for x
    x = 9,454,494,039.40/121,795.84
  6. Step 6: Final answer
    x = 77,625.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.