Home / 161,619.12-242,161.38-82,624.68

Finding the Fourth Proportional to 161,619.12, 242,161.38 and 82,624.68

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Solution

The fourth proportional to 161,619.12, 242,161.38 and 82,624.68 is: 123,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,619.12 : 242,161.38 = 82,624.68 : x
  2. Step 2: Convert to fraction form
    161,619.12/242,161.38 = 82,624.68/x
  3. Step 3: Cross multiply
    161,619.12x = 242,161.38 × 82,624.68
  4. Step 4: Simplify right side
    161,619.12x = 20,008,506,530.86
  5. Step 5: Solve for x
    x = 20,008,506,530.86/161,619.12
  6. Step 6: Final answer
    x = 123,800.37

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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.