Home / 144,132.66-198,906.30-90,419.94

Finding the Fourth Proportional to 144,132.66, 198,906.30 and 90,419.94

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Solution

The fourth proportional to 144,132.66, 198,906.30 and 90,419.94 is: 124,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,132.66 : 198,906.30 = 90,419.94 : x
  2. Step 2: Convert to fraction form
    144,132.66/198,906.30 = 90,419.94/x
  3. Step 3: Cross multiply
    144,132.66x = 198,906.30 × 90,419.94
  4. Step 4: Simplify right side
    144,132.66x = 17,985,095,711.62
  5. Step 5: Solve for x
    x = 17,985,095,711.62/144,132.66
  6. Step 6: Final answer
    x = 124,781.54

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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.