Home / 220,391.12-304,133.36-124,906.64

Finding the Fourth Proportional to 220,391.12, 304,133.36 and 124,906.64

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Solution

The fourth proportional to 220,391.12, 304,133.36 and 124,906.64 is: 172,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,391.12 : 304,133.36 = 124,906.64 : x
  2. Step 2: Convert to fraction form
    220,391.12/304,133.36 = 124,906.64/x
  3. Step 3: Cross multiply
    220,391.12x = 304,133.36 × 124,906.64
  4. Step 4: Simplify right side
    220,391.12x = 37,988,276,109.51
  5. Step 5: Solve for x
    x = 37,988,276,109.51/220,391.12
  6. Step 6: Final answer
    x = 172,367.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.