Home / 88,305.01-121,906.05-68,116.57

Finding the Fourth Proportional to 88,305.01, 121,906.05 and 68,116.57

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Solution

The fourth proportional to 88,305.01, 121,906.05 and 68,116.57 is: 94,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,305.01 : 121,906.05 = 68,116.57 : x
  2. Step 2: Convert to fraction form
    88,305.01/121,906.05 = 68,116.57/x
  3. Step 3: Cross multiply
    88,305.01x = 121,906.05 × 68,116.57
  4. Step 4: Simplify right side
    88,305.01x = 8,303,821,988.25
  5. Step 5: Solve for x
    x = 8,303,821,988.25/88,305.01
  6. Step 6: Final answer
    x = 94,035.68

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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.