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Finding the Fourth Proportional to 161,949.64, 242,846.46 and 91,810.12

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Solution

The fourth proportional to 161,949.64, 242,846.46 and 91,810.12 is: 137,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,949.64 : 242,846.46 = 91,810.12 : x
  2. Step 2: Convert to fraction form
    161,949.64/242,846.46 = 91,810.12/x
  3. Step 3: Cross multiply
    161,949.64x = 242,846.46 × 91,810.12
  4. Step 4: Simplify right side
    161,949.64x = 22,295,762,634.18
  5. Step 5: Solve for x
    x = 22,295,762,634.18/161,949.64
  6. Step 6: Final answer
    x = 137,670.96

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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.