Home / 143,177.62-197,449.14-85,808.56

Finding the Fourth Proportional to 143,177.62, 197,449.14 and 85,808.56

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Solution

The fourth proportional to 143,177.62, 197,449.14 and 85,808.56 is: 118,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,177.62 : 197,449.14 = 85,808.56 : x
  2. Step 2: Convert to fraction form
    143,177.62/197,449.14 = 85,808.56/x
  3. Step 3: Cross multiply
    143,177.62x = 197,449.14 × 85,808.56
  4. Step 4: Simplify right side
    143,177.62x = 16,942,826,376.64
  5. Step 5: Solve for x
    x = 16,942,826,376.64/143,177.62
  6. Step 6: Final answer
    x = 118,334.32

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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.