Home / 205,709.68-283,902.90-115,088.60

Finding the Fourth Proportional to 205,709.68, 283,902.90 and 115,088.60

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Solution

The fourth proportional to 205,709.68, 283,902.90 and 115,088.60 is: 158,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,709.68 : 283,902.90 = 115,088.60 : x
  2. Step 2: Convert to fraction form
    205,709.68/283,902.90 = 115,088.60/x
  3. Step 3: Cross multiply
    205,709.68x = 283,902.90 × 115,088.60
  4. Step 4: Simplify right side
    205,709.68x = 32,673,986,301.85
  5. Step 5: Solve for x
    x = 32,673,986,301.85/205,709.68
  6. Step 6: Final answer
    x = 158,835.44

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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.