Home / 125,145.14-172,700.90-68,556.52

Finding the Fourth Proportional to 125,145.14, 172,700.90 and 68,556.52

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Solution

The fourth proportional to 125,145.14, 172,700.90 and 68,556.52 is: 94,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,145.14 : 172,700.90 = 68,556.52 : x
  2. Step 2: Convert to fraction form
    125,145.14/172,700.90 = 68,556.52/x
  3. Step 3: Cross multiply
    125,145.14x = 172,700.90 × 68,556.52
  4. Step 4: Simplify right side
    125,145.14x = 11,839,772,704.87
  5. Step 5: Solve for x
    x = 11,839,772,704.87/125,145.14
  6. Step 6: Final answer
    x = 94,608.33

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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.