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Finding the Fourth Proportional to 104,017.50, 156,052.17 and 30,145.50

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Solution

The fourth proportional to 104,017.50, 156,052.17 and 30,145.50 is: 45,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,017.50 : 156,052.17 = 30,145.50 : x
  2. Step 2: Convert to fraction form
    104,017.50/156,052.17 = 30,145.50/x
  3. Step 3: Cross multiply
    104,017.50x = 156,052.17 × 30,145.50
  4. Step 4: Simplify right side
    104,017.50x = 4,704,270,690.74
  5. Step 5: Solve for x
    x = 4,704,270,690.74/104,017.50
  6. Step 6: Final answer
    x = 45,225.76

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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.