Home / 109,319.19-163,869.17-38,186.61

Finding the Fourth Proportional to 109,319.19, 163,869.17 and 38,186.61

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Solution

The fourth proportional to 109,319.19, 163,869.17 and 38,186.61 is: 57,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,319.19 : 163,869.17 = 38,186.61 : x
  2. Step 2: Convert to fraction form
    109,319.19/163,869.17 = 38,186.61/x
  3. Step 3: Cross multiply
    109,319.19x = 163,869.17 × 38,186.61
  4. Step 4: Simplify right side
    109,319.19x = 6,257,607,894.88
  5. Step 5: Solve for x
    x = 6,257,607,894.88/109,319.19
  6. Step 6: Final answer
    x = 57,241.62

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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.