Home / 198,468.04-297,711.80-80,124.60

Finding the Fourth Proportional to 198,468.04, 297,711.80 and 80,124.60

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Solution

The fourth proportional to 198,468.04, 297,711.80 and 80,124.60 is: 120,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,468.04 : 297,711.80 = 80,124.60 : x
  2. Step 2: Convert to fraction form
    198,468.04/297,711.80 = 80,124.60/x
  3. Step 3: Cross multiply
    198,468.04x = 297,711.80 × 80,124.60
  4. Step 4: Simplify right side
    198,468.04x = 23,854,038,890.28
  5. Step 5: Solve for x
    x = 23,854,038,890.28/198,468.04
  6. Step 6: Final answer
    x = 120,190.83

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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.