Home / 149,427.92-206,209.22-81,444.90

Finding the Fourth Proportional to 149,427.92, 206,209.22 and 81,444.90

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Solution

The fourth proportional to 149,427.92, 206,209.22 and 81,444.90 is: 112,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,427.92 : 206,209.22 = 81,444.90 : x
  2. Step 2: Convert to fraction form
    149,427.92/206,209.22 = 81,444.90/x
  3. Step 3: Cross multiply
    149,427.92x = 206,209.22 × 81,444.90
  4. Step 4: Simplify right side
    149,427.92x = 16,794,689,505.59
  5. Step 5: Solve for x
    x = 16,794,689,505.59/149,427.92
  6. Step 6: Final answer
    x = 112,393.25

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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.