Home / 205,725.12-283,887.28-115,065.38

Finding the Fourth Proportional to 205,725.12, 283,887.28 and 115,065.38

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Solution

The fourth proportional to 205,725.12, 283,887.28 and 115,065.38 is: 158,782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,725.12 : 283,887.28 = 115,065.38 : x
  2. Step 2: Convert to fraction form
    205,725.12/283,887.28 = 115,065.38/x
  3. Step 3: Cross multiply
    205,725.12x = 283,887.28 × 115,065.38
  4. Step 4: Simplify right side
    205,725.12x = 32,665,597,750.37
  5. Step 5: Solve for x
    x = 32,665,597,750.37/205,725.12
  6. Step 6: Final answer
    x = 158,782.74

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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.