Home / 195,720.50-270,089.71-115,153.25

Finding the Fourth Proportional to 195,720.50, 270,089.71 and 115,153.25

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Solution

The fourth proportional to 195,720.50, 270,089.71 and 115,153.25 is: 158,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,720.50 : 270,089.71 = 115,153.25 : x
  2. Step 2: Convert to fraction form
    195,720.50/270,089.71 = 115,153.25/x
  3. Step 3: Cross multiply
    195,720.50x = 270,089.71 × 115,153.25
  4. Step 4: Simplify right side
    195,720.50x = 31,101,706,259.73
  5. Step 5: Solve for x
    x = 31,101,706,259.73/195,720.50
  6. Step 6: Final answer
    x = 158,908.78

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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.