Home / 78,734.08-117,579.22-69,195.52

Finding the Fourth Proportional to 78,734.08, 117,579.22 and 69,195.52

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Solution

The fourth proportional to 78,734.08, 117,579.22 and 69,195.52 is: 103,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,734.08 : 117,579.22 = 69,195.52 : x
  2. Step 2: Convert to fraction form
    78,734.08/117,579.22 = 69,195.52/x
  3. Step 3: Cross multiply
    78,734.08x = 117,579.22 × 69,195.52
  4. Step 4: Simplify right side
    78,734.08x = 8,135,955,269.09
  5. Step 5: Solve for x
    x = 8,135,955,269.09/78,734.08
  6. Step 6: Final answer
    x = 103,334.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.