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Finding the Fourth Proportional to 161,561.67, 222,809.97 and 101,137.83

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Solution

The fourth proportional to 161,561.67, 222,809.97 and 101,137.83 is: 139,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,561.67 : 222,809.97 = 101,137.83 : x
  2. Step 2: Convert to fraction form
    161,561.67/222,809.97 = 101,137.83/x
  3. Step 3: Cross multiply
    161,561.67x = 222,809.97 × 101,137.83
  4. Step 4: Simplify right side
    161,561.67x = 22,534,516,868.17
  5. Step 5: Solve for x
    x = 22,534,516,868.17/161,561.67
  6. Step 6: Final answer
    x = 139,479.35

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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.