Home / 89,968.16-134,879.28-67,738.88

Finding the Fourth Proportional to 89,968.16, 134,879.28 and 67,738.88

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Solution

The fourth proportional to 89,968.16, 134,879.28 and 67,738.88 is: 101,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,968.16 : 134,879.28 = 67,738.88 : x
  2. Step 2: Convert to fraction form
    89,968.16/134,879.28 = 67,738.88/x
  3. Step 3: Cross multiply
    89,968.16x = 134,879.28 × 67,738.88
  4. Step 4: Simplify right side
    89,968.16x = 9,136,571,362.41
  5. Step 5: Solve for x
    x = 9,136,571,362.41/89,968.16
  6. Step 6: Final answer
    x = 101,553.39

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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.