Home / 102,573.24-141,396-79,872.18

Finding the Fourth Proportional to 102,573.24, 141,396 and 79,872.18

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Solution

The fourth proportional to 102,573.24, 141,396 and 79,872.18 is: 110,102.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,573.24 : 141,396 = 79,872.18 : x
  2. Step 2: Convert to fraction form
    102,573.24/141,396 = 79,872.18/x
  3. Step 3: Cross multiply
    102,573.24x = 141,396 × 79,872.18
  4. Step 4: Simplify right side
    102,573.24x = 11,293,606,763.28
  5. Step 5: Solve for x
    x = 11,293,606,763.28/102,573.24
  6. Step 6: Final answer
    x = 110,102.86

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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.