Home / 131,965.80-197,948.70-53,136.60

Finding the Fourth Proportional to 131,965.80, 197,948.70 and 53,136.60

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Solution

The fourth proportional to 131,965.80, 197,948.70 and 53,136.60 is: 79,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,965.80 : 197,948.70 = 53,136.60 : x
  2. Step 2: Convert to fraction form
    131,965.80/197,948.70 = 53,136.60/x
  3. Step 3: Cross multiply
    131,965.80x = 197,948.70 × 53,136.60
  4. Step 4: Simplify right side
    131,965.80x = 10,518,320,892.42
  5. Step 5: Solve for x
    x = 10,518,320,892.42/131,965.80
  6. Step 6: Final answer
    x = 79,704.90

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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.