Home / 143,728.14-215,575.68-38,538.84

Finding the Fourth Proportional to 143,728.14, 215,575.68 and 38,538.84

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Solution

The fourth proportional to 143,728.14, 215,575.68 and 38,538.84 is: 57,803.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,728.14 : 215,575.68 = 38,538.84 : x
  2. Step 2: Convert to fraction form
    143,728.14/215,575.68 = 38,538.84/x
  3. Step 3: Cross multiply
    143,728.14x = 215,575.68 × 38,538.84
  4. Step 4: Simplify right side
    143,728.14x = 8,308,036,639.41
  5. Step 5: Solve for x
    x = 8,308,036,639.41/143,728.14
  6. Step 6: Final answer
    x = 57,803.83

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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.