Home / 165,465.48-248,025.43-81,108.84

Finding the Fourth Proportional to 165,465.48, 248,025.43 and 81,108.84

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Solution

The fourth proportional to 165,465.48, 248,025.43 and 81,108.84 is: 121,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,465.48 : 248,025.43 = 81,108.84 : x
  2. Step 2: Convert to fraction form
    165,465.48/248,025.43 = 81,108.84/x
  3. Step 3: Cross multiply
    165,465.48x = 248,025.43 × 81,108.84
  4. Step 4: Simplify right side
    165,465.48x = 20,117,055,493.05
  5. Step 5: Solve for x
    x = 20,117,055,493.05/165,465.48
  6. Step 6: Final answer
    x = 121,578.56

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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.