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Finding the Fourth Proportional to 163,023.12, 224,971.90 and 91,403.12

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Solution

The fourth proportional to 163,023.12, 224,971.90 and 91,403.12 is: 126,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,023.12 : 224,971.90 = 91,403.12 : x
  2. Step 2: Convert to fraction form
    163,023.12/224,971.90 = 91,403.12/x
  3. Step 3: Cross multiply
    163,023.12x = 224,971.90 × 91,403.12
  4. Step 4: Simplify right side
    163,023.12x = 20,563,133,906.25
  5. Step 5: Solve for x
    x = 20,563,133,906.25/163,023.12
  6. Step 6: Final answer
    x = 126,136.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.