Home / 143,535.68-215,286.80-38,362.88

Finding the Fourth Proportional to 143,535.68, 215,286.80 and 38,362.88

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Solution

The fourth proportional to 143,535.68, 215,286.80 and 38,362.88 is: 57,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,535.68 : 215,286.80 = 38,362.88 : x
  2. Step 2: Convert to fraction form
    143,535.68/215,286.80 = 38,362.88/x
  3. Step 3: Cross multiply
    143,535.68x = 215,286.80 × 38,362.88
  4. Step 4: Simplify right side
    143,535.68x = 8,259,021,673.98
  5. Step 5: Solve for x
    x = 8,259,021,673.98/143,535.68
  6. Step 6: Final answer
    x = 57,539.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.