Home / 124,627.56-172,005.78-79,258.25

Finding the Fourth Proportional to 124,627.56, 172,005.78 and 79,258.25

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Solution

The fourth proportional to 124,627.56, 172,005.78 and 79,258.25 is: 109,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,627.56 : 172,005.78 = 79,258.25 : x
  2. Step 2: Convert to fraction form
    124,627.56/172,005.78 = 79,258.25/x
  3. Step 3: Cross multiply
    124,627.56x = 172,005.78 × 79,258.25
  4. Step 4: Simplify right side
    124,627.56x = 13,632,876,252.66
  5. Step 5: Solve for x
    x = 13,632,876,252.66/124,627.56
  6. Step 6: Final answer
    x = 109,388.94

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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.