Home / 109,639.12-164,524.28-47,309.62

Finding the Fourth Proportional to 109,639.12, 164,524.28 and 47,309.62

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Solution

The fourth proportional to 109,639.12, 164,524.28 and 47,309.62 is: 70,992.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,639.12 : 164,524.28 = 47,309.62 : x
  2. Step 2: Convert to fraction form
    109,639.12/164,524.28 = 47,309.62/x
  3. Step 3: Cross multiply
    109,639.12x = 164,524.28 × 47,309.62
  4. Step 4: Simplify right side
    109,639.12x = 7,783,581,167.57
  5. Step 5: Solve for x
    x = 7,783,581,167.57/109,639.12
  6. Step 6: Final answer
    x = 70,992.74

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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.