Home / 140,247.10-193,548.25-85,782.20

Finding the Fourth Proportional to 140,247.10, 193,548.25 and 85,782.20

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Solution

The fourth proportional to 140,247.10, 193,548.25 and 85,782.20 is: 118,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,247.10 : 193,548.25 = 85,782.20 : x
  2. Step 2: Convert to fraction form
    140,247.10/193,548.25 = 85,782.20/x
  3. Step 3: Cross multiply
    140,247.10x = 193,548.25 × 85,782.20
  4. Step 4: Simplify right side
    140,247.10x = 16,602,994,691.15
  5. Step 5: Solve for x
    x = 16,602,994,691.15/140,247.10
  6. Step 6: Final answer
    x = 118,383.87

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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.