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Finding the Fourth Proportional to 199,566.56, 299,090.64 and 81,100.02

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Solution

The fourth proportional to 199,566.56, 299,090.64 and 81,100.02 is: 121,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,566.56 : 299,090.64 = 81,100.02 : x
  2. Step 2: Convert to fraction form
    199,566.56/299,090.64 = 81,100.02/x
  3. Step 3: Cross multiply
    199,566.56x = 299,090.64 × 81,100.02
  4. Step 4: Simplify right side
    199,566.56x = 24,256,256,885.81
  5. Step 5: Solve for x
    x = 24,256,256,885.81/199,566.56
  6. Step 6: Final answer
    x = 121,544.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.