Home / 117,123,979.92-161,536,847.30-102,964,892.17

Finding the Fourth Proportional to 117,123,979.92, 161,536,847.30 and 102,964,892.17

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Solution

The fourth proportional to 117,123,979.92, 161,536,847.30 and 102,964,892.17 is: 142,008,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,123,979.92 : 161,536,847.30 = 102,964,892.17 : x
  2. Step 2: Convert to fraction form
    117,123,979.92/161,536,847.30 = 102,964,892.17/x
  3. Step 3: Cross multiply
    117,123,979.92x = 161,536,847.30 × 102,964,892.17
  4. Step 4: Simplify right side
    117,123,979.92x = 16,632,624,063,726,258
  5. Step 5: Solve for x
    x = 16,632,624,063,726,258/117,123,979.92
  6. Step 6: Final answer
    x = 142,008,699.46

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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.