Home / 109,725.20-164,587.80-26,619.20

Finding the Fourth Proportional to 109,725.20, 164,587.80 and 26,619.20

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Solution

The fourth proportional to 109,725.20, 164,587.80 and 26,619.20 is: 39,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,725.20 : 164,587.80 = 26,619.20 : x
  2. Step 2: Convert to fraction form
    109,725.20/164,587.80 = 26,619.20/x
  3. Step 3: Cross multiply
    109,725.20x = 164,587.80 × 26,619.20
  4. Step 4: Simplify right side
    109,725.20x = 4,381,195,565.76
  5. Step 5: Solve for x
    x = 4,381,195,565.76/109,725.20
  6. Step 6: Final answer
    x = 39,928.80

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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.