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Finding the Fourth Proportional to 92,219.86, 126,433.91 and 90,538.60

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Solution

The fourth proportional to 92,219.86, 126,433.91 and 90,538.60 is: 124,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,219.86 : 126,433.91 = 90,538.60 : x
  2. Step 2: Convert to fraction form
    92,219.86/126,433.91 = 90,538.60/x
  3. Step 3: Cross multiply
    92,219.86x = 126,433.91 × 90,538.60
  4. Step 4: Simplify right side
    92,219.86x = 11,447,149,203.93
  5. Step 5: Solve for x
    x = 11,447,149,203.93/92,219.86
  6. Step 6: Final answer
    x = 124,128.89

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.