Home / 102,213.06-140,973.98-66,414.72

Finding the Fourth Proportional to 102,213.06, 140,973.98 and 66,414.72

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Solution

The fourth proportional to 102,213.06, 140,973.98 and 66,414.72 is: 91,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,213.06 : 140,973.98 = 66,414.72 : x
  2. Step 2: Convert to fraction form
    102,213.06/140,973.98 = 66,414.72/x
  3. Step 3: Cross multiply
    102,213.06x = 140,973.98 × 66,414.72
  4. Step 4: Simplify right side
    102,213.06x = 9,362,747,408.99
  5. Step 5: Solve for x
    x = 9,362,747,408.99/102,213.06
  6. Step 6: Final answer
    x = 91,600.30

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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.