Home / 198,985.42-298,428.90-124,067.02

Finding the Fourth Proportional to 198,985.42, 298,428.90 and 124,067.02

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Solution

The fourth proportional to 198,985.42, 298,428.90 and 124,067.02 is: 186,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,985.42 : 298,428.90 = 124,067.02 : x
  2. Step 2: Convert to fraction form
    198,985.42/298,428.90 = 124,067.02/x
  3. Step 3: Cross multiply
    198,985.42x = 298,428.90 × 124,067.02
  4. Step 4: Simplify right side
    198,985.42x = 37,025,184,304.88
  5. Step 5: Solve for x
    x = 37,025,184,304.88/198,985.42
  6. Step 6: Final answer
    x = 186,069.84

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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.