Home / 172,932.81-257,680.16-154,067.91

Finding the Fourth Proportional to 172,932.81, 257,680.16 and 154,067.91

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Solution

The fourth proportional to 172,932.81, 257,680.16 and 154,067.91 is: 229,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,932.81 : 257,680.16 = 154,067.91 : x
  2. Step 2: Convert to fraction form
    172,932.81/257,680.16 = 154,067.91/x
  3. Step 3: Cross multiply
    172,932.81x = 257,680.16 × 154,067.91
  4. Step 4: Simplify right side
    172,932.81x = 39,700,242,929.33
  5. Step 5: Solve for x
    x = 39,700,242,929.33/172,932.81
  6. Step 6: Final answer
    x = 229,570.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.