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Finding the Fourth Proportional to 110,006.10, 165,009.15 and 70,640.10

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Solution

The fourth proportional to 110,006.10, 165,009.15 and 70,640.10 is: 105,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,006.10 : 165,009.15 = 70,640.10 : x
  2. Step 2: Convert to fraction form
    110,006.10/165,009.15 = 70,640.10/x
  3. Step 3: Cross multiply
    110,006.10x = 165,009.15 × 70,640.10
  4. Step 4: Simplify right side
    110,006.10x = 11,656,262,856.92
  5. Step 5: Solve for x
    x = 11,656,262,856.92/110,006.10
  6. Step 6: Final answer
    x = 105,960.15

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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.