Home / 109,918-164,766.22-43,332.36

Finding the Fourth Proportional to 109,918, 164,766.22 and 43,332.36

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Solution

The fourth proportional to 109,918, 164,766.22 and 43,332.36 is: 64,954.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,918 : 164,766.22 = 43,332.36 : x
  2. Step 2: Convert to fraction form
    109,918/164,766.22 = 43,332.36/x
  3. Step 3: Cross multiply
    109,918x = 164,766.22 × 43,332.36
  4. Step 4: Simplify right side
    109,918x = 7,139,709,160.88
  5. Step 5: Solve for x
    x = 7,139,709,160.88/109,918
  6. Step 6: Final answer
    x = 64,954.87

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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.