Home / 103,872.58-143,586.30-92,653.27

Finding the Fourth Proportional to 103,872.58, 143,586.30 and 92,653.27

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Solution

The fourth proportional to 103,872.58, 143,586.30 and 92,653.27 is: 128,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,872.58 : 143,586.30 = 92,653.27 : x
  2. Step 2: Convert to fraction form
    103,872.58/143,586.30 = 92,653.27/x
  3. Step 3: Cross multiply
    103,872.58x = 143,586.30 × 92,653.27
  4. Step 4: Simplify right side
    103,872.58x = 13,303,739,504.27
  5. Step 5: Solve for x
    x = 13,303,739,504.27/103,872.58
  6. Step 6: Final answer
    x = 128,077.50

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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.