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Finding the Fourth Proportional to 157,090.59, 216,789.58 and 85,475.22

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Solution

The fourth proportional to 157,090.59, 216,789.58 and 85,475.22 is: 117,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,090.59 : 216,789.58 = 85,475.22 : x
  2. Step 2: Convert to fraction form
    157,090.59/216,789.58 = 85,475.22/x
  3. Step 3: Cross multiply
    157,090.59x = 216,789.58 × 85,475.22
  4. Step 4: Simplify right side
    157,090.59x = 18,530,136,338.09
  5. Step 5: Solve for x
    x = 18,530,136,338.09/157,090.59
  6. Step 6: Final answer
    x = 117,958.28

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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.