Home / 101,977.18-140,727.58-56,655.25

Finding the Fourth Proportional to 101,977.18, 140,727.58 and 56,655.25

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Solution

The fourth proportional to 101,977.18, 140,727.58 and 56,655.25 is: 78,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,977.18 : 140,727.58 = 56,655.25 : x
  2. Step 2: Convert to fraction form
    101,977.18/140,727.58 = 56,655.25/x
  3. Step 3: Cross multiply
    101,977.18x = 140,727.58 × 56,655.25
  4. Step 4: Simplify right side
    101,977.18x = 7,972,956,226.80
  5. Step 5: Solve for x
    x = 7,972,956,226.80/101,977.18
  6. Step 6: Final answer
    x = 78,183.73

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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.