Home / 120,600.83-166,439.10-66,903.15

Finding the Fourth Proportional to 120,600.83, 166,439.10 and 66,903.15

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Solution

The fourth proportional to 120,600.83, 166,439.10 and 66,903.15 is: 92,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,600.83 : 166,439.10 = 66,903.15 : x
  2. Step 2: Convert to fraction form
    120,600.83/166,439.10 = 66,903.15/x
  3. Step 3: Cross multiply
    120,600.83x = 166,439.10 × 66,903.15
  4. Step 4: Simplify right side
    120,600.83x = 11,135,300,073.17
  5. Step 5: Solve for x
    x = 11,135,300,073.17/120,600.83
  6. Step 6: Final answer
    x = 92,331.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.