Home / 136,701.54-188,647.86-76,268.61

Finding the Fourth Proportional to 136,701.54, 188,647.86 and 76,268.61

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Solution

The fourth proportional to 136,701.54, 188,647.86 and 76,268.61 is: 105,250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,701.54 : 188,647.86 = 76,268.61 : x
  2. Step 2: Convert to fraction form
    136,701.54/188,647.86 = 76,268.61/x
  3. Step 3: Cross multiply
    136,701.54x = 188,647.86 × 76,268.61
  4. Step 4: Simplify right side
    136,701.54x = 14,387,910,061.67
  5. Step 5: Solve for x
    x = 14,387,910,061.67/136,701.54
  6. Step 6: Final answer
    x = 105,250.53

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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.