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Finding the Fourth Proportional to 101,520.37, 140,096.42 and 56,197.40

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Solution

The fourth proportional to 101,520.37, 140,096.42 and 56,197.40 is: 77,551.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,520.37 : 140,096.42 = 56,197.40 : x
  2. Step 2: Convert to fraction form
    101,520.37/140,096.42 = 56,197.40/x
  3. Step 3: Cross multiply
    101,520.37x = 140,096.42 × 56,197.40
  4. Step 4: Simplify right side
    101,520.37x = 7,873,053,571.84
  5. Step 5: Solve for x
    x = 7,873,053,571.84/101,520.37
  6. Step 6: Final answer
    x = 77,551.47

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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.