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Finding the Fourth Proportional to 161,485, 242,236.14 and 50,685.64

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Solution

The fourth proportional to 161,485, 242,236.14 and 50,685.64 is: 76,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,485 : 242,236.14 = 50,685.64 : x
  2. Step 2: Convert to fraction form
    161,485/242,236.14 = 50,685.64/x
  3. Step 3: Cross multiply
    161,485x = 242,236.14 × 50,685.64
  4. Step 4: Simplify right side
    161,485x = 12,277,893,787.03
  5. Step 5: Solve for x
    x = 12,277,893,787.03/161,485
  6. Step 6: Final answer
    x = 76,031.17

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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.