Home / 136,286.13-188,052.40-75,855.21

Finding the Fourth Proportional to 136,286.13, 188,052.40 and 75,855.21

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Solution

The fourth proportional to 136,286.13, 188,052.40 and 75,855.21 is: 104,667.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,286.13 : 188,052.40 = 75,855.21 : x
  2. Step 2: Convert to fraction form
    136,286.13/188,052.40 = 75,855.21/x
  3. Step 3: Cross multiply
    136,286.13x = 188,052.40 × 75,855.21
  4. Step 4: Simplify right side
    136,286.13x = 14,264,754,293.00
  5. Step 5: Solve for x
    x = 14,264,754,293.00/136,286.13
  6. Step 6: Final answer
    x = 104,667.69

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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.