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Finding the Fourth Proportional to 181,099.31, 249,912.44 and 99,427.15

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Solution

The fourth proportional to 181,099.31, 249,912.44 and 99,427.15 is: 137,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,099.31 : 249,912.44 = 99,427.15 : x
  2. Step 2: Convert to fraction form
    181,099.31/249,912.44 = 99,427.15/x
  3. Step 3: Cross multiply
    181,099.31x = 249,912.44 × 99,427.15
  4. Step 4: Simplify right side
    181,099.31x = 24,848,081,846.85
  5. Step 5: Solve for x
    x = 24,848,081,846.85/181,099.31
  6. Step 6: Final answer
    x = 137,206.94

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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.