Home / 119,558.20-164,880.48-78,705.04

Finding the Fourth Proportional to 119,558.20, 164,880.48 and 78,705.04

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Solution

The fourth proportional to 119,558.20, 164,880.48 and 78,705.04 is: 108,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,558.20 : 164,880.48 = 78,705.04 : x
  2. Step 2: Convert to fraction form
    119,558.20/164,880.48 = 78,705.04/x
  3. Step 3: Cross multiply
    119,558.20x = 164,880.48 × 78,705.04
  4. Step 4: Simplify right side
    119,558.20x = 12,976,924,773.62
  5. Step 5: Solve for x
    x = 12,976,924,773.62/119,558.20
  6. Step 6: Final answer
    x = 108,540.65

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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.