Home / 151,778.15-209,452.73-83,795.12

Finding the Fourth Proportional to 151,778.15, 209,452.73 and 83,795.12

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Solution

The fourth proportional to 151,778.15, 209,452.73 and 83,795.12 is: 115,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,778.15 : 209,452.73 = 83,795.12 : x
  2. Step 2: Convert to fraction form
    151,778.15/209,452.73 = 83,795.12/x
  3. Step 3: Cross multiply
    151,778.15x = 209,452.73 × 83,795.12
  4. Step 4: Simplify right side
    151,778.15x = 17,551,115,178.44
  5. Step 5: Solve for x
    x = 17,551,115,178.44/151,778.15
  6. Step 6: Final answer
    x = 115,636.64

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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.