Home / 119,180.04-164,519.88-78,913.32

Finding the Fourth Proportional to 119,180.04, 164,519.88 and 78,913.32

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Solution

The fourth proportional to 119,180.04, 164,519.88 and 78,913.32 is: 108,934.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,180.04 : 164,519.88 = 78,913.32 : x
  2. Step 2: Convert to fraction form
    119,180.04/164,519.88 = 78,913.32/x
  3. Step 3: Cross multiply
    119,180.04x = 164,519.88 × 78,913.32
  4. Step 4: Simplify right side
    119,180.04x = 12,982,809,936.80
  5. Step 5: Solve for x
    x = 12,982,809,936.80/119,180.04
  6. Step 6: Final answer
    x = 108,934.43

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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.