Home / 136,579.12-204,866.64-83,286.76

Finding the Fourth Proportional to 136,579.12, 204,866.64 and 83,286.76

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Solution

The fourth proportional to 136,579.12, 204,866.64 and 83,286.76 is: 124,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,579.12 : 204,866.64 = 83,286.76 : x
  2. Step 2: Convert to fraction form
    136,579.12/204,866.64 = 83,286.76/x
  3. Step 3: Cross multiply
    136,579.12x = 204,866.64 × 83,286.76
  4. Step 4: Simplify right side
    136,579.12x = 17,062,678,677.69
  5. Step 5: Solve for x
    x = 17,062,678,677.69/136,579.12
  6. Step 6: Final answer
    x = 124,928.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.