Home / 136,514.86-188,405.76-76,091.02

Finding the Fourth Proportional to 136,514.86, 188,405.76 and 76,091.02

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Solution

The fourth proportional to 136,514.86, 188,405.76 and 76,091.02 is: 105,014.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,514.86 : 188,405.76 = 76,091.02 : x
  2. Step 2: Convert to fraction form
    136,514.86/188,405.76 = 76,091.02/x
  3. Step 3: Cross multiply
    136,514.86x = 188,405.76 × 76,091.02
  4. Step 4: Simplify right side
    136,514.86x = 14,335,986,452.28
  5. Step 5: Solve for x
    x = 14,335,986,452.28/136,514.86
  6. Step 6: Final answer
    x = 105,014.11

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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.