Home / 143,799.30-215,516.70-54,934.20

Finding the Fourth Proportional to 143,799.30, 215,516.70 and 54,934.20

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Solution

The fourth proportional to 143,799.30, 215,516.70 and 54,934.20 is: 82,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,799.30 : 215,516.70 = 54,934.20 : x
  2. Step 2: Convert to fraction form
    143,799.30/215,516.70 = 54,934.20/x
  3. Step 3: Cross multiply
    143,799.30x = 215,516.70 × 54,934.20
  4. Step 4: Simplify right side
    143,799.30x = 11,839,237,501.14
  5. Step 5: Solve for x
    x = 11,839,237,501.14/143,799.30
  6. Step 6: Final answer
    x = 82,331.68

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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.