Home / 100,730.36-151,100.94-25,851.15

Finding the Fourth Proportional to 100,730.36, 151,100.94 and 25,851.15

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Solution

The fourth proportional to 100,730.36, 151,100.94 and 25,851.15 is: 38,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,730.36 : 151,100.94 = 25,851.15 : x
  2. Step 2: Convert to fraction form
    100,730.36/151,100.94 = 25,851.15/x
  3. Step 3: Cross multiply
    100,730.36x = 151,100.94 × 25,851.15
  4. Step 4: Simplify right side
    100,730.36x = 3,906,132,935.83
  5. Step 5: Solve for x
    x = 3,906,132,935.83/100,730.36
  6. Step 6: Final answer
    x = 38,778.11

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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.