Home / 198,468.79-297,712.91-80,125.36

Finding the Fourth Proportional to 198,468.79, 297,712.91 and 80,125.36

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Solution

The fourth proportional to 198,468.79, 297,712.91 and 80,125.36 is: 120,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,468.79 : 297,712.91 = 80,125.36 : x
  2. Step 2: Convert to fraction form
    198,468.79/297,712.91 = 80,125.36/x
  3. Step 3: Cross multiply
    198,468.79x = 297,712.91 × 80,125.36
  4. Step 4: Simplify right side
    198,468.79x = 23,854,354,090.40
  5. Step 5: Solve for x
    x = 23,854,354,090.40/198,468.79
  6. Step 6: Final answer
    x = 120,191.97

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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.