Home / 109,544.20-164,316.30-72,608.20

Finding the Fourth Proportional to 109,544.20, 164,316.30 and 72,608.20

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Solution

The fourth proportional to 109,544.20, 164,316.30 and 72,608.20 is: 108,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,544.20 : 164,316.30 = 72,608.20 : x
  2. Step 2: Convert to fraction form
    109,544.20/164,316.30 = 72,608.20/x
  3. Step 3: Cross multiply
    109,544.20x = 164,316.30 × 72,608.20
  4. Step 4: Simplify right side
    109,544.20x = 11,930,710,773.66
  5. Step 5: Solve for x
    x = 11,930,710,773.66/109,544.20
  6. Step 6: Final answer
    x = 108,912.30

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1.5x scale

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.