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Finding the Fourth Proportional to 212,160.64, 292,789.28 and 116,674.72

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Solution

The fourth proportional to 212,160.64, 292,789.28 and 116,674.72 is: 161,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,160.64 : 292,789.28 = 116,674.72 : x
  2. Step 2: Convert to fraction form
    212,160.64/292,789.28 = 116,674.72/x
  3. Step 3: Cross multiply
    212,160.64x = 292,789.28 × 116,674.72
  4. Step 4: Simplify right side
    212,160.64x = 34,161,107,263.00
  5. Step 5: Solve for x
    x = 34,161,107,263.00/212,160.64
  6. Step 6: Final answer
    x = 161,015.29

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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.