Home / 156,485.44-215,944.08-92,785.12

Finding the Fourth Proportional to 156,485.44, 215,944.08 and 92,785.12

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Solution

The fourth proportional to 156,485.44, 215,944.08 and 92,785.12 is: 128,040.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,485.44 : 215,944.08 = 92,785.12 : x
  2. Step 2: Convert to fraction form
    156,485.44/215,944.08 = 92,785.12/x
  3. Step 3: Cross multiply
    156,485.44x = 215,944.08 × 92,785.12
  4. Step 4: Simplify right side
    156,485.44x = 20,036,397,376.09
  5. Step 5: Solve for x
    x = 20,036,397,376.09/156,485.44
  6. Step 6: Final answer
    x = 128,040.01

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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.