Home / 231,870.54-320,001.60-129,894.36

Finding the Fourth Proportional to 231,870.54, 320,001.60 and 129,894.36

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Solution

The fourth proportional to 231,870.54, 320,001.60 and 129,894.36 is: 179,265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,870.54 : 320,001.60 = 129,894.36 : x
  2. Step 2: Convert to fraction form
    231,870.54/320,001.60 = 129,894.36/x
  3. Step 3: Cross multiply
    231,870.54x = 320,001.60 × 129,894.36
  4. Step 4: Simplify right side
    231,870.54x = 41,566,403,030.98
  5. Step 5: Solve for x
    x = 41,566,403,030.98/231,870.54
  6. Step 6: Final answer
    x = 179,265.56

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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.