Home / 198,603.90-297,711.45-80,117.10

Finding the Fourth Proportional to 198,603.90, 297,711.45 and 80,117.10

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Solution

The fourth proportional to 198,603.90, 297,711.45 and 80,117.10 is: 120,097.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,603.90 : 297,711.45 = 80,117.10 : x
  2. Step 2: Convert to fraction form
    198,603.90/297,711.45 = 80,117.10/x
  3. Step 3: Cross multiply
    198,603.90x = 297,711.45 × 80,117.10
  4. Step 4: Simplify right side
    198,603.90x = 23,851,778,010.80
  5. Step 5: Solve for x
    x = 23,851,778,010.80/198,603.90
  6. Step 6: Final answer
    x = 120,097.23

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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.