Home / 136,654.44-188,587.80-79,289.43

Finding the Fourth Proportional to 136,654.44, 188,587.80 and 79,289.43

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Solution

The fourth proportional to 136,654.44, 188,587.80 and 79,289.43 is: 109,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,654.44 : 188,587.80 = 79,289.43 : x
  2. Step 2: Convert to fraction form
    136,654.44/188,587.80 = 79,289.43/x
  3. Step 3: Cross multiply
    136,654.44x = 188,587.80 × 79,289.43
  4. Step 4: Simplify right side
    136,654.44x = 14,953,019,166.95
  5. Step 5: Solve for x
    x = 14,953,019,166.95/136,654.44
  6. Step 6: Final answer
    x = 109,422.12

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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.