Home / 101,968.84-140,709.78-57,263.56

Finding the Fourth Proportional to 101,968.84, 140,709.78 and 57,263.56

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Solution

The fourth proportional to 101,968.84, 140,709.78 and 57,263.56 is: 79,019.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,968.84 : 140,709.78 = 57,263.56 : x
  2. Step 2: Convert to fraction form
    101,968.84/140,709.78 = 57,263.56/x
  3. Step 3: Cross multiply
    101,968.84x = 140,709.78 × 57,263.56
  4. Step 4: Simplify right side
    101,968.84x = 8,057,542,929.62
  5. Step 5: Solve for x
    x = 8,057,542,929.62/101,968.84
  6. Step 6: Final answer
    x = 79,019.66

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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.