Home / 122,851.91-169,535.09-69,137.84

Finding the Fourth Proportional to 122,851.91, 169,535.09 and 69,137.84

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Solution

The fourth proportional to 122,851.91, 169,535.09 and 69,137.84 is: 95,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,851.91 : 169,535.09 = 69,137.84 : x
  2. Step 2: Convert to fraction form
    122,851.91/169,535.09 = 69,137.84/x
  3. Step 3: Cross multiply
    122,851.91x = 169,535.09 × 69,137.84
  4. Step 4: Simplify right side
    122,851.91x = 11,721,290,523.49
  5. Step 5: Solve for x
    x = 11,721,290,523.49/122,851.91
  6. Step 6: Final answer
    x = 95,409.91

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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.