Home / 143,556.91-215,318.96-38,384.08

Finding the Fourth Proportional to 143,556.91, 215,318.96 and 38,384.08

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Solution

The fourth proportional to 143,556.91, 215,318.96 and 38,384.08 is: 57,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,556.91 : 215,318.96 = 38,384.08 : x
  2. Step 2: Convert to fraction form
    143,556.91/215,318.96 = 38,384.08/x
  3. Step 3: Cross multiply
    143,556.91x = 215,318.96 × 38,384.08
  4. Step 4: Simplify right side
    143,556.91x = 8,264,818,917.64
  5. Step 5: Solve for x
    x = 8,264,818,917.64/143,556.91
  6. Step 6: Final answer
    x = 57,571.73

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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.