Home / 215,127.26-322,690.46-102,465.78

Finding the Fourth Proportional to 215,127.26, 322,690.46 and 102,465.78

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Solution

The fourth proportional to 215,127.26, 322,690.46 and 102,465.78 is: 153,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,127.26 : 322,690.46 = 102,465.78 : x
  2. Step 2: Convert to fraction form
    215,127.26/322,690.46 = 102,465.78/x
  3. Step 3: Cross multiply
    215,127.26x = 322,690.46 × 102,465.78
  4. Step 4: Simplify right side
    215,127.26x = 33,064,729,682.46
  5. Step 5: Solve for x
    x = 33,064,729,682.46/215,127.26
  6. Step 6: Final answer
    x = 153,698.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.