Home / 78,279.04-117,195.08-73,313.33

Finding the Fourth Proportional to 78,279.04, 117,195.08 and 73,313.33

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Solution

The fourth proportional to 78,279.04, 117,195.08 and 73,313.33 is: 109,760.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,279.04 : 117,195.08 = 73,313.33 : x
  2. Step 2: Convert to fraction form
    78,279.04/117,195.08 = 73,313.33/x
  3. Step 3: Cross multiply
    78,279.04x = 117,195.08 × 73,313.33
  4. Step 4: Simplify right side
    78,279.04x = 8,591,961,500.84
  5. Step 5: Solve for x
    x = 8,591,961,500.84/78,279.04
  6. Step 6: Final answer
    x = 109,760.69

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1.5x scale

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.