Home / 205,981.32-308,977.38-65,739.84

Finding the Fourth Proportional to 205,981.32, 308,977.38 and 65,739.84

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Solution

The fourth proportional to 205,981.32, 308,977.38 and 65,739.84 is: 98,611.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,981.32 : 308,977.38 = 65,739.84 : x
  2. Step 2: Convert to fraction form
    205,981.32/308,977.38 = 65,739.84/x
  3. Step 3: Cross multiply
    205,981.32x = 308,977.38 × 65,739.84
  4. Step 4: Simplify right side
    205,981.32x = 20,312,123,524.82
  5. Step 5: Solve for x
    x = 20,312,123,524.82/205,981.32
  6. Step 6: Final answer
    x = 98,611.48

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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.