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Finding the Fourth Proportional to 143,482.70, 197,952.64 and 89,747.30

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Solution

The fourth proportional to 143,482.70, 197,952.64 and 89,747.30 is: 123,817.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,482.70 : 197,952.64 = 89,747.30 : x
  2. Step 2: Convert to fraction form
    143,482.70/197,952.64 = 89,747.30/x
  3. Step 3: Cross multiply
    143,482.70x = 197,952.64 × 89,747.30
  4. Step 4: Simplify right side
    143,482.70x = 17,765,713,753.74
  5. Step 5: Solve for x
    x = 17,765,713,753.74/143,482.70
  6. Step 6: Final answer
    x = 123,817.81

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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.