Home / 109,623.20-164,416.23-30,719.30

Finding the Fourth Proportional to 109,623.20, 164,416.23 and 30,719.30

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Solution

The fourth proportional to 109,623.20, 164,416.23 and 30,719.30 is: 46,073.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,623.20 : 164,416.23 = 30,719.30 : x
  2. Step 2: Convert to fraction form
    109,623.20/164,416.23 = 30,719.30/x
  3. Step 3: Cross multiply
    109,623.20x = 164,416.23 × 30,719.30
  4. Step 4: Simplify right side
    109,623.20x = 5,050,750,672.16
  5. Step 5: Solve for x
    x = 5,050,750,672.16/109,623.20
  6. Step 6: Final answer
    x = 46,073.74

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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.