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Finding the Fourth Proportional to 161,978.17, 242,972.96 and 43,652.36

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Solution

The fourth proportional to 161,978.17, 242,972.96 and 43,652.36 is: 65,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,978.17 : 242,972.96 = 43,652.36 : x
  2. Step 2: Convert to fraction form
    161,978.17/242,972.96 = 43,652.36/x
  3. Step 3: Cross multiply
    161,978.17x = 242,972.96 × 43,652.36
  4. Step 4: Simplify right side
    161,978.17x = 10,606,343,120.19
  5. Step 5: Solve for x
    x = 10,606,343,120.19/161,978.17
  6. Step 6: Final answer
    x = 65,480.08

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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.