Home / 125,074.54-172,629.66-79,742.08

Finding the Fourth Proportional to 125,074.54, 172,629.66 and 79,742.08

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Solution

The fourth proportional to 125,074.54, 172,629.66 and 79,742.08 is: 110,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,074.54 : 172,629.66 = 79,742.08 : x
  2. Step 2: Convert to fraction form
    125,074.54/172,629.66 = 79,742.08/x
  3. Step 3: Cross multiply
    125,074.54x = 172,629.66 × 79,742.08
  4. Step 4: Simplify right side
    125,074.54x = 13,765,848,158.09
  5. Step 5: Solve for x
    x = 13,765,848,158.09/125,074.54
  6. Step 6: Final answer
    x = 110,061.15

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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.