Home / 104,389.92-143,997.84-66,621.60

Finding the Fourth Proportional to 104,389.92, 143,997.84 and 66,621.60

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Solution

The fourth proportional to 104,389.92, 143,997.84 and 66,621.60 is: 91,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,389.92 : 143,997.84 = 66,621.60 : x
  2. Step 2: Convert to fraction form
    104,389.92/143,997.84 = 66,621.60/x
  3. Step 3: Cross multiply
    104,389.92x = 143,997.84 × 66,621.60
  4. Step 4: Simplify right side
    104,389.92x = 9,593,366,497.34
  5. Step 5: Solve for x
    x = 9,593,366,497.34/104,389.92
  6. Step 6: Final answer
    x = 91,899.36

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1.5x scale

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.