Home / 161,540.91-242,311.44-72,690.63

Finding the Fourth Proportional to 161,540.91, 242,311.44 and 72,690.63

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Solution

The fourth proportional to 161,540.91, 242,311.44 and 72,690.63 is: 109,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,540.91 : 242,311.44 = 72,690.63 : x
  2. Step 2: Convert to fraction form
    161,540.91/242,311.44 = 72,690.63/x
  3. Step 3: Cross multiply
    161,540.91x = 242,311.44 × 72,690.63
  4. Step 4: Simplify right side
    161,540.91x = 17,613,770,866.35
  5. Step 5: Solve for x
    x = 17,613,770,866.35/161,540.91
  6. Step 6: Final answer
    x = 109,035.98

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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.