Home / 136,109.72-187,839.90-75,693.86

Finding the Fourth Proportional to 136,109.72, 187,839.90 and 75,693.86

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Solution

The fourth proportional to 136,109.72, 187,839.90 and 75,693.86 is: 104,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,109.72 : 187,839.90 = 75,693.86 : x
  2. Step 2: Convert to fraction form
    136,109.72/187,839.90 = 75,693.86/x
  3. Step 3: Cross multiply
    136,109.72x = 187,839.90 × 75,693.86
  4. Step 4: Simplify right side
    136,109.72x = 14,218,327,093.01
  5. Step 5: Solve for x
    x = 14,218,327,093.01/136,109.72
  6. Step 6: Final answer
    x = 104,462.25

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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.