Home / 156,091.40-215,406.68-84,471.41

Finding the Fourth Proportional to 156,091.40, 215,406.68 and 84,471.41

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Solution

The fourth proportional to 156,091.40, 215,406.68 and 84,471.41 is: 116,570.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,091.40 : 215,406.68 = 84,471.41 : x
  2. Step 2: Convert to fraction form
    156,091.40/215,406.68 = 84,471.41/x
  3. Step 3: Cross multiply
    156,091.40x = 215,406.68 × 84,471.41
  4. Step 4: Simplify right side
    156,091.40x = 18,195,705,983.02
  5. Step 5: Solve for x
    x = 18,195,705,983.02/156,091.40
  6. Step 6: Final answer
    x = 116,570.84

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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.