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Finding the Fourth Proportional to 143,468.56, 197,997.60 and 79,811.08

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Solution

The fourth proportional to 143,468.56, 197,997.60 and 79,811.08 is: 110,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,468.56 : 197,997.60 = 79,811.08 : x
  2. Step 2: Convert to fraction form
    143,468.56/197,997.60 = 79,811.08/x
  3. Step 3: Cross multiply
    143,468.56x = 197,997.60 × 79,811.08
  4. Step 4: Simplify right side
    143,468.56x = 15,802,402,293.41
  5. Step 5: Solve for x
    x = 15,802,402,293.41/143,468.56
  6. Step 6: Final answer
    x = 110,145.40

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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.