Home / 121,899.75-168,226.24-68,184.60

Finding the Fourth Proportional to 121,899.75, 168,226.24 and 68,184.60

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Solution

The fourth proportional to 121,899.75, 168,226.24 and 68,184.60 is: 94,097.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,899.75 : 168,226.24 = 68,184.60 : x
  2. Step 2: Convert to fraction form
    121,899.75/168,226.24 = 68,184.60/x
  3. Step 3: Cross multiply
    121,899.75x = 168,226.24 × 68,184.60
  4. Step 4: Simplify right side
    121,899.75x = 11,470,438,883.90
  5. Step 5: Solve for x
    x = 11,470,438,883.90/121,899.75
  6. Step 6: Final answer
    x = 94,097.31

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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.