Home / 109,331.70-164,062.35-71,998.80

Finding the Fourth Proportional to 109,331.70, 164,062.35 and 71,998.80

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Solution

The fourth proportional to 109,331.70, 164,062.35 and 71,998.80 is: 108,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,331.70 : 164,062.35 = 71,998.80 : x
  2. Step 2: Convert to fraction form
    109,331.70/164,062.35 = 71,998.80/x
  3. Step 3: Cross multiply
    109,331.70x = 164,062.35 × 71,998.80
  4. Step 4: Simplify right side
    109,331.70x = 11,812,292,325.18
  5. Step 5: Solve for x
    x = 11,812,292,325.18/109,331.70
  6. Step 6: Final answer
    x = 108,040.87

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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.