Home / 121,998.24-168,357.54-68,283.25

Finding the Fourth Proportional to 121,998.24, 168,357.54 and 68,283.25

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Solution

The fourth proportional to 121,998.24, 168,357.54 and 68,283.25 is: 94,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,998.24 : 168,357.54 = 68,283.25 : x
  2. Step 2: Convert to fraction form
    121,998.24/168,357.54 = 68,283.25/x
  3. Step 3: Cross multiply
    121,998.24x = 168,357.54 × 68,283.25
  4. Step 4: Simplify right side
    121,998.24x = 11,495,999,993.21
  5. Step 5: Solve for x
    x = 11,495,999,993.21/121,998.24
  6. Step 6: Final answer
    x = 94,230.87

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1.5x scale

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.