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Finding the Fourth Proportional to 156,383.73, 215,807.49 and 84,763.26

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Solution

The fourth proportional to 156,383.73, 215,807.49 and 84,763.26 is: 116,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,383.73 : 215,807.49 = 84,763.26 : x
  2. Step 2: Convert to fraction form
    156,383.73/215,807.49 = 84,763.26/x
  3. Step 3: Cross multiply
    156,383.73x = 215,807.49 × 84,763.26
  4. Step 4: Simplify right side
    156,383.73x = 18,292,546,384.82
  5. Step 5: Solve for x
    x = 18,292,546,384.82/156,383.73
  6. Step 6: Final answer
    x = 116,972.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.