Home / 138,517.08-191,311.20-93,116.34

Finding the Fourth Proportional to 138,517.08, 191,311.20 and 93,116.34

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Solution

The fourth proportional to 138,517.08, 191,311.20 and 93,116.34 is: 128,606.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,517.08 : 191,311.20 = 93,116.34 : x
  2. Step 2: Convert to fraction form
    138,517.08/191,311.20 = 93,116.34/x
  3. Step 3: Cross multiply
    138,517.08x = 191,311.20 × 93,116.34
  4. Step 4: Simplify right side
    138,517.08x = 17,814,198,745.01
  5. Step 5: Solve for x
    x = 17,814,198,745.01/138,517.08
  6. Step 6: Final answer
    x = 128,606.51

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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.