Home / 88,452.22-121,980.72-68,277.28

Finding the Fourth Proportional to 88,452.22, 121,980.72 and 68,277.28

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Solution

The fourth proportional to 88,452.22, 121,980.72 and 68,277.28 is: 94,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,452.22 : 121,980.72 = 68,277.28 : x
  2. Step 2: Convert to fraction form
    88,452.22/121,980.72 = 68,277.28/x
  3. Step 3: Cross multiply
    88,452.22x = 121,980.72 × 68,277.28
  4. Step 4: Simplify right side
    88,452.22x = 8,328,511,774.04
  5. Step 5: Solve for x
    x = 8,328,511,774.04/88,452.22
  6. Step 6: Final answer
    x = 94,158.31

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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.