Home / 198,417.89-273,808.80-107,772

Finding the Fourth Proportional to 198,417.89, 273,808.80 and 107,772

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Solution

The fourth proportional to 198,417.89, 273,808.80 and 107,772 is: 148,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,417.89 : 273,808.80 = 107,772 : x
  2. Step 2: Convert to fraction form
    198,417.89/273,808.80 = 107,772/x
  3. Step 3: Cross multiply
    198,417.89x = 273,808.80 × 107,772
  4. Step 4: Simplify right side
    198,417.89x = 29,508,921,993.60
  5. Step 5: Solve for x
    x = 29,508,921,993.60/198,417.89
  6. Step 6: Final answer
    x = 148,721.08

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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.