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Finding the Fourth Proportional to 161,485, 242,232.16 and 43,156.52

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Solution

The fourth proportional to 161,485, 242,232.16 and 43,156.52 is: 64,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,485 : 242,232.16 = 43,156.52 : x
  2. Step 2: Convert to fraction form
    161,485/242,232.16 = 43,156.52/x
  3. Step 3: Cross multiply
    161,485x = 242,232.16 × 43,156.52
  4. Step 4: Simplify right side
    161,485x = 10,453,897,057.68
  5. Step 5: Solve for x
    x = 10,453,897,057.68/161,485
  6. Step 6: Final answer
    x = 64,736.03

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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.