Home / 109,310.24-163,922.40-53,133.90

Finding the Fourth Proportional to 109,310.24, 163,922.40 and 53,133.90

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Solution

The fourth proportional to 109,310.24, 163,922.40 and 53,133.90 is: 79,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,310.24 : 163,922.40 = 53,133.90 : x
  2. Step 2: Convert to fraction form
    109,310.24/163,922.40 = 53,133.90/x
  3. Step 3: Cross multiply
    109,310.24x = 163,922.40 × 53,133.90
  4. Step 4: Simplify right side
    109,310.24x = 8,709,836,409.36
  5. Step 5: Solve for x
    x = 8,709,836,409.36/109,310.24
  6. Step 6: Final answer
    x = 79,679.97

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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.