Home / 115,348.78-173,008.86-31,115.80

Finding the Fourth Proportional to 115,348.78, 173,008.86 and 31,115.80

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Solution

The fourth proportional to 115,348.78, 173,008.86 and 31,115.80 is: 46,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,348.78 : 173,008.86 = 31,115.80 : x
  2. Step 2: Convert to fraction form
    115,348.78/173,008.86 = 31,115.80/x
  3. Step 3: Cross multiply
    115,348.78x = 173,008.86 × 31,115.80
  4. Step 4: Simplify right side
    115,348.78x = 5,383,309,085.99
  5. Step 5: Solve for x
    x = 5,383,309,085.99/115,348.78
  6. Step 6: Final answer
    x = 46,669.84

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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.