Home / 205,880.11-308,845.09-72,733.12

Finding the Fourth Proportional to 205,880.11, 308,845.09 and 72,733.12

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Solution

The fourth proportional to 205,880.11, 308,845.09 and 72,733.12 is: 109,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,880.11 : 308,845.09 = 72,733.12 : x
  2. Step 2: Convert to fraction form
    205,880.11/308,845.09 = 72,733.12/x
  3. Step 3: Cross multiply
    205,880.11x = 308,845.09 × 72,733.12
  4. Step 4: Simplify right side
    205,880.11x = 22,463,267,639.31
  5. Step 5: Solve for x
    x = 22,463,267,639.31/205,880.11
  6. Step 6: Final answer
    x = 109,108.49

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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.