Home / 103,108.89-142,247.75-67,286.01

Finding the Fourth Proportional to 103,108.89, 142,247.75 and 67,286.01

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Solution

The fourth proportional to 103,108.89, 142,247.75 and 67,286.01 is: 92,826.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,108.89 : 142,247.75 = 67,286.01 : x
  2. Step 2: Convert to fraction form
    103,108.89/142,247.75 = 67,286.01/x
  3. Step 3: Cross multiply
    103,108.89x = 142,247.75 × 67,286.01
  4. Step 4: Simplify right side
    103,108.89x = 9,571,283,192.55
  5. Step 5: Solve for x
    x = 9,571,283,192.55/103,108.89
  6. Step 6: Final answer
    x = 92,826.94

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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.