Home / 134,999.90-202,629.45-68,515.10

Finding the Fourth Proportional to 134,999.90, 202,629.45 and 68,515.10

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Solution

The fourth proportional to 134,999.90, 202,629.45 and 68,515.10 is: 102,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,999.90 : 202,629.45 = 68,515.10 : x
  2. Step 2: Convert to fraction form
    134,999.90/202,629.45 = 68,515.10/x
  3. Step 3: Cross multiply
    134,999.90x = 202,629.45 × 68,515.10
  4. Step 4: Simplify right side
    134,999.90x = 13,883,177,029.70
  5. Step 5: Solve for x
    x = 13,883,177,029.70/134,999.90
  6. Step 6: Final answer
    x = 102,838.42

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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.