Home / 120,808.04-166,894.16-79,512.42

Finding the Fourth Proportional to 120,808.04, 166,894.16 and 79,512.42

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Solution

The fourth proportional to 120,808.04, 166,894.16 and 79,512.42 is: 109,845.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,808.04 : 166,894.16 = 79,512.42 : x
  2. Step 2: Convert to fraction form
    120,808.04/166,894.16 = 79,512.42/x
  3. Step 3: Cross multiply
    120,808.04x = 166,894.16 × 79,512.42
  4. Step 4: Simplify right side
    120,808.04x = 13,270,158,147.91
  5. Step 5: Solve for x
    x = 13,270,158,147.91/120,808.04
  6. Step 6: Final answer
    x = 109,845.00

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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.