Home / 161,716.32-242,621.25-66,928.98

Finding the Fourth Proportional to 161,716.32, 242,621.25 and 66,928.98

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Solution

The fourth proportional to 161,716.32, 242,621.25 and 66,928.98 is: 100,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,716.32 : 242,621.25 = 66,928.98 : x
  2. Step 2: Convert to fraction form
    161,716.32/242,621.25 = 66,928.98/x
  3. Step 3: Cross multiply
    161,716.32x = 242,621.25 × 66,928.98
  4. Step 4: Simplify right side
    161,716.32x = 16,238,392,788.83
  5. Step 5: Solve for x
    x = 16,238,392,788.83/161,716.32
  6. Step 6: Final answer
    x = 100,412.83

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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.