Home / 109,693.20-164,539.80-26,587.20

Finding the Fourth Proportional to 109,693.20, 164,539.80 and 26,587.20

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Solution

The fourth proportional to 109,693.20, 164,539.80 and 26,587.20 is: 39,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,693.20 : 164,539.80 = 26,587.20 : x
  2. Step 2: Convert to fraction form
    109,693.20/164,539.80 = 26,587.20/x
  3. Step 3: Cross multiply
    109,693.20x = 164,539.80 × 26,587.20
  4. Step 4: Simplify right side
    109,693.20x = 4,374,652,570.56
  5. Step 5: Solve for x
    x = 4,374,652,570.56/109,693.20
  6. Step 6: Final answer
    x = 39,880.80

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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.