Home / 91,751.20-137,937.84-73,267.36

Finding the Fourth Proportional to 91,751.20, 137,937.84 and 73,267.36

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Solution

The fourth proportional to 91,751.20, 137,937.84 and 73,267.36 is: 110,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.20 : 137,937.84 = 73,267.36 : x
  2. Step 2: Convert to fraction form
    91,751.20/137,937.84 = 73,267.36/x
  3. Step 3: Cross multiply
    91,751.20x = 137,937.84 × 73,267.36
  4. Step 4: Simplify right side
    91,751.20x = 10,106,341,380.90
  5. Step 5: Solve for x
    x = 10,106,341,380.90/91,751.20
  6. Step 6: Final answer
    x = 110,149.42

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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.