Home / 125,208.82-187,820.07-31,715.38

Finding the Fourth Proportional to 125,208.82, 187,820.07 and 31,715.38

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Solution

The fourth proportional to 125,208.82, 187,820.07 and 31,715.38 is: 47,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208.82 : 187,820.07 = 31,715.38 : x
  2. Step 2: Convert to fraction form
    125,208.82/187,820.07 = 31,715.38/x
  3. Step 3: Cross multiply
    125,208.82x = 187,820.07 × 31,715.38
  4. Step 4: Simplify right side
    125,208.82x = 5,956,784,891.68
  5. Step 5: Solve for x
    x = 5,956,784,891.68/125,208.82
  6. Step 6: Final answer
    x = 47,574.80

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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.