Home / 136,009.20-187,634.52-84,987.16

Finding the Fourth Proportional to 136,009.20, 187,634.52 and 84,987.16

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Solution

The fourth proportional to 136,009.20, 187,634.52 and 84,987.16 is: 117,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,009.20 : 187,634.52 = 84,987.16 : x
  2. Step 2: Convert to fraction form
    136,009.20/187,634.52 = 84,987.16/x
  3. Step 3: Cross multiply
    136,009.20x = 187,634.52 × 84,987.16
  4. Step 4: Simplify right side
    136,009.20x = 15,946,524,972.76
  5. Step 5: Solve for x
    x = 15,946,524,972.76/136,009.20
  6. Step 6: Final answer
    x = 117,245.93

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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.