Home / 122,868.53-169,540.13-69,150.35

Finding the Fourth Proportional to 122,868.53, 169,540.13 and 69,150.35

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Solution

The fourth proportional to 122,868.53, 169,540.13 and 69,150.35 is: 95,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,868.53 : 169,540.13 = 69,150.35 : x
  2. Step 2: Convert to fraction form
    122,868.53/169,540.13 = 69,150.35/x
  3. Step 3: Cross multiply
    122,868.53x = 169,540.13 × 69,150.35
  4. Step 4: Simplify right side
    122,868.53x = 11,723,758,135.09
  5. Step 5: Solve for x
    x = 11,723,758,135.09/122,868.53
  6. Step 6: Final answer
    x = 95,417.10

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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.