Home / 90,964.85-136,511.86-73,408.02

Finding the Fourth Proportional to 90,964.85, 136,511.86 and 73,408.02

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Solution

The fourth proportional to 90,964.85, 136,511.86 and 73,408.02 is: 110,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,964.85 : 136,511.86 = 73,408.02 : x
  2. Step 2: Convert to fraction form
    90,964.85/136,511.86 = 73,408.02/x
  3. Step 3: Cross multiply
    90,964.85x = 136,511.86 × 73,408.02
  4. Step 4: Simplify right side
    90,964.85x = 10,021,065,352.74
  5. Step 5: Solve for x
    x = 10,021,065,352.74/90,964.85
  6. Step 6: Final answer
    x = 110,164.15

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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.