Home / 198,430.92-273,877.98-122,015.76

Finding the Fourth Proportional to 198,430.92, 273,877.98 and 122,015.76

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Solution

The fourth proportional to 198,430.92, 273,877.98 and 122,015.76 is: 168,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,430.92 : 273,877.98 = 122,015.76 : x
  2. Step 2: Convert to fraction form
    198,430.92/273,877.98 = 122,015.76/x
  3. Step 3: Cross multiply
    198,430.92x = 273,877.98 × 122,015.76
  4. Step 4: Simplify right side
    198,430.92x = 33,417,428,392.36
  5. Step 5: Solve for x
    x = 33,417,428,392.36/198,430.92
  6. Step 6: Final answer
    x = 168,408.37

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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.