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Finding the Fourth Proportional to 104,065.81, 156,035.50 and 40,810.15

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Solution

The fourth proportional to 104,065.81, 156,035.50 and 40,810.15 is: 61,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.81 : 156,035.50 = 40,810.15 : x
  2. Step 2: Convert to fraction form
    104,065.81/156,035.50 = 40,810.15/x
  3. Step 3: Cross multiply
    104,065.81x = 156,035.50 × 40,810.15
  4. Step 4: Simplify right side
    104,065.81x = 6,367,832,160.33
  5. Step 5: Solve for x
    x = 6,367,832,160.33/104,065.81
  6. Step 6: Final answer
    x = 61,190.43

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Why These Related Problems?

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