Home / 119,283.54-164,578.14-78,984.42

Finding the Fourth Proportional to 119,283.54, 164,578.14 and 78,984.42

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Solution

The fourth proportional to 119,283.54, 164,578.14 and 78,984.42 is: 108,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,283.54 : 164,578.14 = 78,984.42 : x
  2. Step 2: Convert to fraction form
    119,283.54/164,578.14 = 78,984.42/x
  3. Step 3: Cross multiply
    119,283.54x = 164,578.14 × 78,984.42
  4. Step 4: Simplify right side
    119,283.54x = 12,999,108,932.58
  5. Step 5: Solve for x
    x = 12,999,108,932.58/119,283.54
  6. Step 6: Final answer
    x = 108,976.55

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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.