Home / 161,720.32-242,627.25-66,932.98

Finding the Fourth Proportional to 161,720.32, 242,627.25 and 66,932.98

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Solution

The fourth proportional to 161,720.32, 242,627.25 and 66,932.98 is: 100,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,720.32 : 242,627.25 = 66,932.98 : x
  2. Step 2: Convert to fraction form
    161,720.32/242,627.25 = 66,932.98/x
  3. Step 3: Cross multiply
    161,720.32x = 242,627.25 × 66,932.98
  4. Step 4: Simplify right side
    161,720.32x = 16,239,764,871.71
  5. Step 5: Solve for x
    x = 16,239,764,871.71/161,720.32
  6. Step 6: Final answer
    x = 100,418.83

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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.