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Finding the Fourth Proportional to 161,733.80, 242,568.30 and 77,493.80

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Solution

The fourth proportional to 161,733.80, 242,568.30 and 77,493.80 is: 116,225.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,733.80 : 242,568.30 = 77,493.80 : x
  2. Step 2: Convert to fraction form
    161,733.80/242,568.30 = 77,493.80/x
  3. Step 3: Cross multiply
    161,733.80x = 242,568.30 × 77,493.80
  4. Step 4: Simplify right side
    161,733.80x = 18,797,539,326.54
  5. Step 5: Solve for x
    x = 18,797,539,326.54/161,733.80
  6. Step 6: Final answer
    x = 116,225.18

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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.