Home / 137,020.86-188,965.98-114,126.75

Finding the Fourth Proportional to 137,020.86, 188,965.98 and 114,126.75

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Solution

The fourth proportional to 137,020.86, 188,965.98 and 114,126.75 is: 157,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,020.86 : 188,965.98 = 114,126.75 : x
  2. Step 2: Convert to fraction form
    137,020.86/188,965.98 = 114,126.75/x
  3. Step 3: Cross multiply
    137,020.86x = 188,965.98 × 114,126.75
  4. Step 4: Simplify right side
    137,020.86x = 21,566,073,157.97
  5. Step 5: Solve for x
    x = 21,566,073,157.97/137,020.86
  6. Step 6: Final answer
    x = 157,392.63

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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.