Home / 84,194.15-126,111.67-68,114.69

Finding the Fourth Proportional to 84,194.15, 126,111.67 and 68,114.69

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Solution

The fourth proportional to 84,194.15, 126,111.67 and 68,114.69 is: 102,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,194.15 : 126,111.67 = 68,114.69 : x
  2. Step 2: Convert to fraction form
    84,194.15/126,111.67 = 68,114.69/x
  3. Step 3: Cross multiply
    84,194.15x = 126,111.67 × 68,114.69
  4. Step 4: Simplify right side
    84,194.15x = 8,590,057,234.94
  5. Step 5: Solve for x
    x = 8,590,057,234.94/84,194.15
  6. Step 6: Final answer
    x = 102,026.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.