Home / 149,424.52-206,199.80-81,440.04

Finding the Fourth Proportional to 149,424.52, 206,199.80 and 81,440.04

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Solution

The fourth proportional to 149,424.52, 206,199.80 and 81,440.04 is: 112,383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,424.52 : 206,199.80 = 81,440.04 : x
  2. Step 2: Convert to fraction form
    149,424.52/206,199.80 = 81,440.04/x
  3. Step 3: Cross multiply
    149,424.52x = 206,199.80 × 81,440.04
  4. Step 4: Simplify right side
    149,424.52x = 16,792,919,959.99
  5. Step 5: Solve for x
    x = 16,792,919,959.99/149,424.52
  6. Step 6: Final answer
    x = 112,383.96

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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.