Home / 140,022.12-193,245.51-85,606.22

Finding the Fourth Proportional to 140,022.12, 193,245.51 and 85,606.22

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Solution

The fourth proportional to 140,022.12, 193,245.51 and 85,606.22 is: 118,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,022.12 : 193,245.51 = 85,606.22 : x
  2. Step 2: Convert to fraction form
    140,022.12/193,245.51 = 85,606.22/x
  3. Step 3: Cross multiply
    140,022.12x = 193,245.51 × 85,606.22
  4. Step 4: Simplify right side
    140,022.12x = 16,543,016,999.05
  5. Step 5: Solve for x
    x = 16,543,016,999.05/140,022.12
  6. Step 6: Final answer
    x = 118,145.74

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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.