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Finding the Fourth Proportional to 101,562.75, 140,156.73 and 56,850.75

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Solution

The fourth proportional to 101,562.75, 140,156.73 and 56,850.75 is: 78,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,562.75 : 140,156.73 = 56,850.75 : x
  2. Step 2: Convert to fraction form
    101,562.75/140,156.73 = 56,850.75/x
  3. Step 3: Cross multiply
    101,562.75x = 140,156.73 × 56,850.75
  4. Step 4: Simplify right side
    101,562.75x = 7,968,015,218.05
  5. Step 5: Solve for x
    x = 7,968,015,218.05/101,562.75
  6. Step 6: Final answer
    x = 78,454.11

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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.