Home / 121,910.48-168,233.36-68,197.76

Finding the Fourth Proportional to 121,910.48, 168,233.36 and 68,197.76

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Solution

The fourth proportional to 121,910.48, 168,233.36 and 68,197.76 is: 94,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,910.48 : 168,233.36 = 68,197.76 : x
  2. Step 2: Convert to fraction form
    121,910.48/168,233.36 = 68,197.76/x
  3. Step 3: Cross multiply
    121,910.48x = 168,233.36 × 68,197.76
  4. Step 4: Simplify right side
    121,910.48x = 11,473,138,309.27
  5. Step 5: Solve for x
    x = 11,473,138,309.27/121,910.48
  6. Step 6: Final answer
    x = 94,111.17

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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.