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Finding the Fourth Proportional to 103,751.10, 155,527.02 and 66,205.17

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Solution

The fourth proportional to 103,751.10, 155,527.02 and 66,205.17 is: 99,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,751.10 : 155,527.02 = 66,205.17 : x
  2. Step 2: Convert to fraction form
    103,751.10/155,527.02 = 66,205.17/x
  3. Step 3: Cross multiply
    103,751.10x = 155,527.02 × 66,205.17
  4. Step 4: Simplify right side
    103,751.10x = 10,296,692,798.69
  5. Step 5: Solve for x
    x = 10,296,692,798.69/103,751.10
  6. Step 6: Final answer
    x = 99,244.18

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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.