Home / 171,315.19-257,025.37-76,625.05

Finding the Fourth Proportional to 171,315.19, 257,025.37 and 76,625.05

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Solution

The fourth proportional to 171,315.19, 257,025.37 and 76,625.05 is: 114,961.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,315.19 : 257,025.37 = 76,625.05 : x
  2. Step 2: Convert to fraction form
    171,315.19/257,025.37 = 76,625.05/x
  3. Step 3: Cross multiply
    171,315.19x = 257,025.37 × 76,625.05
  4. Step 4: Simplify right side
    171,315.19x = 19,694,580,542.39
  5. Step 5: Solve for x
    x = 19,694,580,542.39/171,315.19
  6. Step 6: Final answer
    x = 114,961.09

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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.