Home / 202,036.05-278,811.69-111,395.55

Finding the Fourth Proportional to 202,036.05, 278,811.69 and 111,395.55

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Solution

The fourth proportional to 202,036.05, 278,811.69 and 111,395.55 is: 153,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,036.05 : 278,811.69 = 111,395.55 : x
  2. Step 2: Convert to fraction form
    202,036.05/278,811.69 = 111,395.55/x
  3. Step 3: Cross multiply
    202,036.05x = 278,811.69 × 111,395.55
  4. Step 4: Simplify right side
    202,036.05x = 31,058,381,553.98
  5. Step 5: Solve for x
    x = 31,058,381,553.98/202,036.05
  6. Step 6: Final answer
    x = 153,726.93

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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.