Home / 109,385.28-164,078.64-39,265.20

Finding the Fourth Proportional to 109,385.28, 164,078.64 and 39,265.20

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Solution

The fourth proportional to 109,385.28, 164,078.64 and 39,265.20 is: 58,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,385.28 : 164,078.64 = 39,265.20 : x
  2. Step 2: Convert to fraction form
    109,385.28/164,078.64 = 39,265.20/x
  3. Step 3: Cross multiply
    109,385.28x = 164,078.64 × 39,265.20
  4. Step 4: Simplify right side
    109,385.28x = 6,442,580,615.33
  5. Step 5: Solve for x
    x = 6,442,580,615.33/109,385.28
  6. Step 6: Final answer
    x = 58,898.06

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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.