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Finding the Fourth Proportional to 132,402.20, 198,603.30 and 70,194.20

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Solution

The fourth proportional to 132,402.20, 198,603.30 and 70,194.20 is: 105,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,402.20 : 198,603.30 = 70,194.20 : x
  2. Step 2: Convert to fraction form
    132,402.20/198,603.30 = 70,194.20/x
  3. Step 3: Cross multiply
    132,402.20x = 198,603.30 × 70,194.20
  4. Step 4: Simplify right side
    132,402.20x = 13,940,799,760.86
  5. Step 5: Solve for x
    x = 13,940,799,760.86/132,402.20
  6. Step 6: Final answer
    x = 105,291.30

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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.