Home / 161,156.40-222,427.64-102,975.92

Finding the Fourth Proportional to 161,156.40, 222,427.64 and 102,975.92

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Solution

The fourth proportional to 161,156.40, 222,427.64 and 102,975.92 is: 142,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,156.40 : 222,427.64 = 102,975.92 : x
  2. Step 2: Convert to fraction form
    161,156.40/222,427.64 = 102,975.92/x
  3. Step 3: Cross multiply
    161,156.40x = 222,427.64 × 102,975.92
  4. Step 4: Simplify right side
    161,156.40x = 22,904,690,862.43
  5. Step 5: Solve for x
    x = 22,904,690,862.43/161,156.40
  6. Step 6: Final answer
    x = 142,127.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.