Home / 231,911.15-320,063.94-129,964.14

Finding the Fourth Proportional to 231,911.15, 320,063.94 and 129,964.14

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Solution

The fourth proportional to 231,911.15, 320,063.94 and 129,964.14 is: 179,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,911.15 : 320,063.94 = 129,964.14 : x
  2. Step 2: Convert to fraction form
    231,911.15/320,063.94 = 129,964.14/x
  3. Step 3: Cross multiply
    231,911.15x = 320,063.94 × 129,964.14
  4. Step 4: Simplify right side
    231,911.15x = 41,596,834,707.11
  5. Step 5: Solve for x
    x = 41,596,834,707.11/231,911.15
  6. Step 6: Final answer
    x = 179,365.40

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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.