Home / 136,102.72-187,830.26-75,686.88

Finding the Fourth Proportional to 136,102.72, 187,830.26 and 75,686.88

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Solution

The fourth proportional to 136,102.72, 187,830.26 and 75,686.88 is: 104,452.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,102.72 : 187,830.26 = 75,686.88 : x
  2. Step 2: Convert to fraction form
    136,102.72/187,830.26 = 75,686.88/x
  3. Step 3: Cross multiply
    136,102.72x = 187,830.26 × 75,686.88
  4. Step 4: Simplify right side
    136,102.72x = 14,216,286,348.99
  5. Step 5: Solve for x
    x = 14,216,286,348.99/136,102.72
  6. Step 6: Final answer
    x = 104,452.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.