Home / 101,052.23-139,453.07-55,732.05

Finding the Fourth Proportional to 101,052.23, 139,453.07 and 55,732.05

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Solution

The fourth proportional to 101,052.23, 139,453.07 and 55,732.05 is: 76,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,052.23 : 139,453.07 = 55,732.05 : x
  2. Step 2: Convert to fraction form
    101,052.23/139,453.07 = 55,732.05/x
  3. Step 3: Cross multiply
    101,052.23x = 139,453.07 × 55,732.05
  4. Step 4: Simplify right side
    101,052.23x = 7,772,005,191.23
  5. Step 5: Solve for x
    x = 7,772,005,191.23/101,052.23
  6. Step 6: Final answer
    x = 76,910.78

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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.