Home / 106,385.63-159,470.79-68,969.47

Finding the Fourth Proportional to 106,385.63, 159,470.79 and 68,969.47

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Solution

The fourth proportional to 106,385.63, 159,470.79 and 68,969.47 is: 103,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,385.63 : 159,470.79 = 68,969.47 : x
  2. Step 2: Convert to fraction form
    106,385.63/159,470.79 = 68,969.47/x
  3. Step 3: Cross multiply
    106,385.63x = 159,470.79 × 68,969.47
  4. Step 4: Simplify right side
    106,385.63x = 10,998,616,324.76
  5. Step 5: Solve for x
    x = 10,998,616,324.76/106,385.63
  6. Step 6: Final answer
    x = 103,384.42

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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.