Home / 122,140.62-168,566.46-68,435.22

Finding the Fourth Proportional to 122,140.62, 168,566.46 and 68,435.22

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Solution

The fourth proportional to 122,140.62, 168,566.46 and 68,435.22 is: 94,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,140.62 : 168,566.46 = 68,435.22 : x
  2. Step 2: Convert to fraction form
    122,140.62/168,566.46 = 68,435.22/x
  3. Step 3: Cross multiply
    122,140.62x = 168,566.46 × 68,435.22
  4. Step 4: Simplify right side
    122,140.62x = 11,535,882,774.72
  5. Step 5: Solve for x
    x = 11,535,882,774.72/122,140.62
  6. Step 6: Final answer
    x = 94,447.55

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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.