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Finding the Fourth Proportional to 143,437.73, 197,951.08 and 79,774.16

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Solution

The fourth proportional to 143,437.73, 197,951.08 and 79,774.16 is: 110,092.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,437.73 : 197,951.08 = 79,774.16 : x
  2. Step 2: Convert to fraction form
    143,437.73/197,951.08 = 79,774.16/x
  3. Step 3: Cross multiply
    143,437.73x = 197,951.08 × 79,774.16
  4. Step 4: Simplify right side
    143,437.73x = 15,791,381,128.09
  5. Step 5: Solve for x
    x = 15,791,381,128.09/143,437.73
  6. Step 6: Final answer
    x = 110,092.24

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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.