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Finding the Fourth Proportional to 131,998.80, 197,825.40 and 53,048.40

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Solution

The fourth proportional to 131,998.80, 197,825.40 and 53,048.40 is: 79,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,998.80 : 197,825.40 = 53,048.40 : x
  2. Step 2: Convert to fraction form
    131,998.80/197,825.40 = 53,048.40/x
  3. Step 3: Cross multiply
    131,998.80x = 197,825.40 × 53,048.40
  4. Step 4: Simplify right side
    131,998.80x = 10,494,320,949.36
  5. Step 5: Solve for x
    x = 10,494,320,949.36/131,998.80
  6. Step 6: Final answer
    x = 79,503.15

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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.