Home / 161,458.64-242,249.47-72,691.73

Finding the Fourth Proportional to 161,458.64, 242,249.47 and 72,691.73

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Solution

The fourth proportional to 161,458.64, 242,249.47 and 72,691.73 is: 109,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,458.64 : 242,249.47 = 72,691.73 : x
  2. Step 2: Convert to fraction form
    161,458.64/242,249.47 = 72,691.73/x
  3. Step 3: Cross multiply
    161,458.64x = 242,249.47 × 72,691.73
  4. Step 4: Simplify right side
    161,458.64x = 17,609,533,065.88
  5. Step 5: Solve for x
    x = 17,609,533,065.88/161,458.64
  6. Step 6: Final answer
    x = 109,065.29

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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.