Home / 88,370.16-121,996-68,181.68

Finding the Fourth Proportional to 88,370.16, 121,996 and 68,181.68

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Solution

The fourth proportional to 88,370.16, 121,996 and 68,181.68 is: 94,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,370.16 : 121,996 = 68,181.68 : x
  2. Step 2: Convert to fraction form
    88,370.16/121,996 = 68,181.68/x
  3. Step 3: Cross multiply
    88,370.16x = 121,996 × 68,181.68
  4. Step 4: Simplify right side
    88,370.16x = 8,317,892,233.28
  5. Step 5: Solve for x
    x = 8,317,892,233.28/88,370.16
  6. Step 6: Final answer
    x = 94,125.58

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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.