Home / 125,280.72-187,932.03-31,786.47

Finding the Fourth Proportional to 125,280.72, 187,932.03 and 31,786.47

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Solution

The fourth proportional to 125,280.72, 187,932.03 and 31,786.47 is: 47,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280.72 : 187,932.03 = 31,786.47 : x
  2. Step 2: Convert to fraction form
    125,280.72/187,932.03 = 31,786.47/x
  3. Step 3: Cross multiply
    125,280.72x = 187,932.03 × 31,786.47
  4. Step 4: Simplify right side
    125,280.72x = 5,973,695,833.63
  5. Step 5: Solve for x
    x = 5,973,695,833.63/125,280.72
  6. Step 6: Final answer
    x = 47,682.48

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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.