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Finding the Fourth Proportional to 103,662.92, 143,055.84 and 57,723.22

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Solution

The fourth proportional to 103,662.92, 143,055.84 and 57,723.22 is: 79,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662.92 : 143,055.84 = 57,723.22 : x
  2. Step 2: Convert to fraction form
    103,662.92/143,055.84 = 57,723.22/x
  3. Step 3: Cross multiply
    103,662.92x = 143,055.84 × 57,723.22
  4. Step 4: Simplify right side
    103,662.92x = 8,257,643,724.60
  5. Step 5: Solve for x
    x = 8,257,643,724.60/103,662.92
  6. Step 6: Final answer
    x = 79,658.61

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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.