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Finding the Fourth Proportional to 131,977, 197,998.52 and 38,482.75

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Solution

The fourth proportional to 131,977, 197,998.52 and 38,482.75 is: 57,733.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,977 : 197,998.52 = 38,482.75 : x
  2. Step 2: Convert to fraction form
    131,977/197,998.52 = 38,482.75/x
  3. Step 3: Cross multiply
    131,977x = 197,998.52 × 38,482.75
  4. Step 4: Simplify right side
    131,977x = 7,619,527,545.53
  5. Step 5: Solve for x
    x = 7,619,527,545.53/131,977
  6. Step 6: Final answer
    x = 57,733.75

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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.