Home / 161,540.22-242,310.40-72,689.94

Finding the Fourth Proportional to 161,540.22, 242,310.40 and 72,689.94

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Solution

The fourth proportional to 161,540.22, 242,310.40 and 72,689.94 is: 109,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,540.22 : 242,310.40 = 72,689.94 : x
  2. Step 2: Convert to fraction form
    161,540.22/242,310.40 = 72,689.94/x
  3. Step 3: Cross multiply
    161,540.22x = 242,310.40 × 72,689.94
  4. Step 4: Simplify right side
    161,540.22x = 17,613,528,664.53
  5. Step 5: Solve for x
    x = 17,613,528,664.53/161,540.22
  6. Step 6: Final answer
    x = 109,034.94

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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.