Home / 68,144.06-102,129.60-30,664.10

Finding the Fourth Proportional to 68,144.06, 102,129.60 and 30,664.10

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Solution

The fourth proportional to 68,144.06, 102,129.60 and 30,664.10 is: 45,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,144.06 : 102,129.60 = 30,664.10 : x
  2. Step 2: Convert to fraction form
    68,144.06/102,129.60 = 30,664.10/x
  3. Step 3: Cross multiply
    68,144.06x = 102,129.60 × 30,664.10
  4. Step 4: Simplify right side
    68,144.06x = 3,131,712,267.36
  5. Step 5: Solve for x
    x = 3,131,712,267.36/68,144.06
  6. Step 6: Final answer
    x = 45,957.23

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1.5x scale

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.