Home / 198,971.07-298,268.97-99,036.78

Finding the Fourth Proportional to 198,971.07, 298,268.97 and 99,036.78

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Solution

The fourth proportional to 198,971.07, 298,268.97 and 99,036.78 is: 148,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,971.07 : 298,268.97 = 99,036.78 : x
  2. Step 2: Convert to fraction form
    198,971.07/298,268.97 = 99,036.78/x
  3. Step 3: Cross multiply
    198,971.07x = 298,268.97 × 99,036.78
  4. Step 4: Simplify right side
    198,971.07x = 29,539,598,362.72
  5. Step 5: Solve for x
    x = 29,539,598,362.72/198,971.07
  6. Step 6: Final answer
    x = 148,461.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.