Home / 144,634.78-199,572.22-90,881.72

Finding the Fourth Proportional to 144,634.78, 199,572.22 and 90,881.72

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Solution

The fourth proportional to 144,634.78, 199,572.22 and 90,881.72 is: 125,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,634.78 : 199,572.22 = 90,881.72 : x
  2. Step 2: Convert to fraction form
    144,634.78/199,572.22 = 90,881.72/x
  3. Step 3: Cross multiply
    144,634.78x = 199,572.22 × 90,881.72
  4. Step 4: Simplify right side
    144,634.78x = 18,137,466,617.82
  5. Step 5: Solve for x
    x = 18,137,466,617.82/144,634.78
  6. Step 6: Final answer
    x = 125,401.83

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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.