Home / 136,119.86-187,846.61-74,867.26

Finding the Fourth Proportional to 136,119.86, 187,846.61 and 74,867.26

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Solution

The fourth proportional to 136,119.86, 187,846.61 and 74,867.26 is: 103,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,119.86 : 187,846.61 = 74,867.26 : x
  2. Step 2: Convert to fraction form
    136,119.86/187,846.61 = 74,867.26/x
  3. Step 3: Cross multiply
    136,119.86x = 187,846.61 × 74,867.26
  4. Step 4: Simplify right side
    136,119.86x = 14,063,560,990.99
  5. Step 5: Solve for x
    x = 14,063,560,990.99/136,119.86
  6. Step 6: Final answer
    x = 103,317.48

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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.