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Finding the Fourth Proportional to 110,025.40, 165,038.10 and 72,700.60

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Solution

The fourth proportional to 110,025.40, 165,038.10 and 72,700.60 is: 109,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,025.40 : 165,038.10 = 72,700.60 : x
  2. Step 2: Convert to fraction form
    110,025.40/165,038.10 = 72,700.60/x
  3. Step 3: Cross multiply
    110,025.40x = 165,038.10 × 72,700.60
  4. Step 4: Simplify right side
    110,025.40x = 11,998,368,892.86
  5. Step 5: Solve for x
    x = 11,998,368,892.86/110,025.40
  6. Step 6: Final answer
    x = 109,050.90

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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.