Home / 125,812.43-173,625.94-72,107.81

Finding the Fourth Proportional to 125,812.43, 173,625.94 and 72,107.81

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Solution

The fourth proportional to 125,812.43, 173,625.94 and 72,107.81 is: 99,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,812.43 : 173,625.94 = 72,107.81 : x
  2. Step 2: Convert to fraction form
    125,812.43/173,625.94 = 72,107.81/x
  3. Step 3: Cross multiply
    125,812.43x = 173,625.94 × 72,107.81
  4. Step 4: Simplify right side
    125,812.43x = 12,519,786,366.12
  5. Step 5: Solve for x
    x = 12,519,786,366.12/125,812.43
  6. Step 6: Final answer
    x = 99,511.52

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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.