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Finding the Fourth Proportional to 161,234.40, 222,603.04 and 103,893.96

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Solution

The fourth proportional to 161,234.40, 222,603.04 and 103,893.96 is: 143,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,234.40 : 222,603.04 = 103,893.96 : x
  2. Step 2: Convert to fraction form
    161,234.40/222,603.04 = 103,893.96/x
  3. Step 3: Cross multiply
    161,234.40x = 222,603.04 × 103,893.96
  4. Step 4: Simplify right side
    161,234.40x = 23,127,111,333.64
  5. Step 5: Solve for x
    x = 23,127,111,333.64/161,234.40
  6. Step 6: Final answer
    x = 143,437.82

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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.