Home / 109,813.40-164,720.10-50,764.40

Finding the Fourth Proportional to 109,813.40, 164,720.10 and 50,764.40

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Solution

The fourth proportional to 109,813.40, 164,720.10 and 50,764.40 is: 76,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,813.40 : 164,720.10 = 50,764.40 : x
  2. Step 2: Convert to fraction form
    109,813.40/164,720.10 = 50,764.40/x
  3. Step 3: Cross multiply
    109,813.40x = 164,720.10 × 50,764.40
  4. Step 4: Simplify right side
    109,813.40x = 8,361,917,044.44
  5. Step 5: Solve for x
    x = 8,361,917,044.44/109,813.40
  6. Step 6: Final answer
    x = 76,146.60

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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.