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Finding the Fourth Proportional to 103,751.56, 155,675.94 and 51,132.34

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Solution

The fourth proportional to 103,751.56, 155,675.94 and 51,132.34 is: 76,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,751.56 : 155,675.94 = 51,132.34 : x
  2. Step 2: Convert to fraction form
    103,751.56/155,675.94 = 51,132.34/x
  3. Step 3: Cross multiply
    103,751.56x = 155,675.94 × 51,132.34
  4. Step 4: Simplify right side
    103,751.56x = 7,960,075,093.90
  5. Step 5: Solve for x
    x = 7,960,075,093.90/103,751.56
  6. Step 6: Final answer
    x = 76,722.46

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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.