Home / 115,811.95-173,747.87-67,821.08

Finding the Fourth Proportional to 115,811.95, 173,747.87 and 67,821.08

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Solution

The fourth proportional to 115,811.95, 173,747.87 and 67,821.08 is: 101,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,811.95 : 173,747.87 = 67,821.08 : x
  2. Step 2: Convert to fraction form
    115,811.95/173,747.87 = 67,821.08/x
  3. Step 3: Cross multiply
    115,811.95x = 173,747.87 × 67,821.08
  4. Step 4: Simplify right side
    115,811.95x = 11,783,768,191.10
  5. Step 5: Solve for x
    x = 11,783,768,191.10/115,811.95
  6. Step 6: Final answer
    x = 101,749.16

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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.