Home / 137,902.38-190,178.92-89,453.85

Finding the Fourth Proportional to 137,902.38, 190,178.92 and 89,453.85

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Solution

The fourth proportional to 137,902.38, 190,178.92 and 89,453.85 is: 123,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,902.38 : 190,178.92 = 89,453.85 : x
  2. Step 2: Convert to fraction form
    137,902.38/190,178.92 = 89,453.85/x
  3. Step 3: Cross multiply
    137,902.38x = 190,178.92 × 89,453.85
  4. Step 4: Simplify right side
    137,902.38x = 17,012,236,582.84
  5. Step 5: Solve for x
    x = 17,012,236,582.84/137,902.38
  6. Step 6: Final answer
    x = 123,364.34

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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.