Home / 110,724.70-166,087.05-81,200.20

Finding the Fourth Proportional to 110,724.70, 166,087.05 and 81,200.20

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Solution

The fourth proportional to 110,724.70, 166,087.05 and 81,200.20 is: 121,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,724.70 : 166,087.05 = 81,200.20 : x
  2. Step 2: Convert to fraction form
    110,724.70/166,087.05 = 81,200.20/x
  3. Step 3: Cross multiply
    110,724.70x = 166,087.05 × 81,200.20
  4. Step 4: Simplify right side
    110,724.70x = 13,486,301,677.41
  5. Step 5: Solve for x
    x = 13,486,301,677.41/110,724.70
  6. Step 6: Final answer
    x = 121,800.30

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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.