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Finding the Fourth Proportional to 132,078.30, 198,117.45 and 117,563.10

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Solution

The fourth proportional to 132,078.30, 198,117.45 and 117,563.10 is: 176,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,078.30 : 198,117.45 = 117,563.10 : x
  2. Step 2: Convert to fraction form
    132,078.30/198,117.45 = 117,563.10/x
  3. Step 3: Cross multiply
    132,078.30x = 198,117.45 × 117,563.10
  4. Step 4: Simplify right side
    132,078.30x = 23,291,301,586.10
  5. Step 5: Solve for x
    x = 23,291,301,586.10/132,078.30
  6. Step 6: Final answer
    x = 176,344.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.