Home / 115,613.73-173,336.49-78,080.76

Finding the Fourth Proportional to 115,613.73, 173,336.49 and 78,080.76

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Solution

The fourth proportional to 115,613.73, 173,336.49 and 78,080.76 is: 117,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,613.73 : 173,336.49 = 78,080.76 : x
  2. Step 2: Convert to fraction form
    115,613.73/173,336.49 = 78,080.76/x
  3. Step 3: Cross multiply
    115,613.73x = 173,336.49 × 78,080.76
  4. Step 4: Simplify right side
    115,613.73x = 13,534,244,874.93
  5. Step 5: Solve for x
    x = 13,534,244,874.93/115,613.73
  6. Step 6: Final answer
    x = 117,064.34

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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.