Home / 125,157.70-187,748.07-40,918.31

Finding the Fourth Proportional to 125,157.70, 187,748.07 and 40,918.31

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Solution

The fourth proportional to 125,157.70, 187,748.07 and 40,918.31 is: 61,381.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,157.70 : 187,748.07 = 40,918.31 : x
  2. Step 2: Convert to fraction form
    125,157.70/187,748.07 = 40,918.31/x
  3. Step 3: Cross multiply
    125,157.70x = 187,748.07 × 40,918.31
  4. Step 4: Simplify right side
    125,157.70x = 7,682,332,791.42
  5. Step 5: Solve for x
    x = 7,682,332,791.42/125,157.70
  6. Step 6: Final answer
    x = 61,381.23

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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.