Home / 136,741.75-188,713.08-76,324.15

Finding the Fourth Proportional to 136,741.75, 188,713.08 and 76,324.15

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Solution

The fourth proportional to 136,741.75, 188,713.08 and 76,324.15 is: 105,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,741.75 : 188,713.08 = 76,324.15 : x
  2. Step 2: Convert to fraction form
    136,741.75/188,713.08 = 76,324.15/x
  3. Step 3: Cross multiply
    136,741.75x = 188,713.08 × 76,324.15
  4. Step 4: Simplify right side
    136,741.75x = 14,403,365,424.88
  5. Step 5: Solve for x
    x = 14,403,365,424.88/136,741.75
  6. Step 6: Final answer
    x = 105,332.61

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1.5x scale

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.