Home / 122,658.26-169,282.42-68,215.86

Finding the Fourth Proportional to 122,658.26, 169,282.42 and 68,215.86

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Solution

The fourth proportional to 122,658.26, 169,282.42 and 68,215.86 is: 94,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,658.26 : 169,282.42 = 68,215.86 : x
  2. Step 2: Convert to fraction form
    122,658.26/169,282.42 = 68,215.86/x
  3. Step 3: Cross multiply
    122,658.26x = 169,282.42 × 68,215.86
  4. Step 4: Simplify right side
    122,658.26x = 11,547,745,863.18
  5. Step 5: Solve for x
    x = 11,547,745,863.18/122,658.26
  6. Step 6: Final answer
    x = 94,145.68

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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.