Home / 109,768.28-164,539.17-53,538.90

Finding the Fourth Proportional to 109,768.28, 164,539.17 and 53,538.90

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Solution

The fourth proportional to 109,768.28, 164,539.17 and 53,538.90 is: 80,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,768.28 : 164,539.17 = 53,538.90 : x
  2. Step 2: Convert to fraction form
    109,768.28/164,539.17 = 53,538.90/x
  3. Step 3: Cross multiply
    109,768.28x = 164,539.17 × 53,538.90
  4. Step 4: Simplify right side
    109,768.28x = 8,809,246,168.71
  5. Step 5: Solve for x
    x = 8,809,246,168.71/109,768.28
  6. Step 6: Final answer
    x = 80,253.12

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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.