Home / 213,919.07-295,239.20-123,257.66

Finding the Fourth Proportional to 213,919.07, 295,239.20 and 123,257.66

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Solution

The fourth proportional to 213,919.07, 295,239.20 and 123,257.66 is: 170,113.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,919.07 : 295,239.20 = 123,257.66 : x
  2. Step 2: Convert to fraction form
    213,919.07/295,239.20 = 123,257.66/x
  3. Step 3: Cross multiply
    213,919.07x = 295,239.20 × 123,257.66
  4. Step 4: Simplify right side
    213,919.07x = 36,390,490,839.79
  5. Step 5: Solve for x
    x = 36,390,490,839.79/213,919.07
  6. Step 6: Final answer
    x = 170,113.36

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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.