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Finding the Fourth Proportional to 143,027.99, 197,414.91 and 97,724.28

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Solution

The fourth proportional to 143,027.99, 197,414.91 and 97,724.28 is: 134,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,027.99 : 197,414.91 = 97,724.28 : x
  2. Step 2: Convert to fraction form
    143,027.99/197,414.91 = 97,724.28/x
  3. Step 3: Cross multiply
    143,027.99x = 197,414.91 × 97,724.28
  4. Step 4: Simplify right side
    143,027.99x = 19,292,230,681.32
  5. Step 5: Solve for x
    x = 19,292,230,681.32/143,027.99
  6. Step 6: Final answer
    x = 134,884.30

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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.