Home / 150,558.90-207,837.96-105,414.36

Finding the Fourth Proportional to 150,558.90, 207,837.96 and 105,414.36

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Solution

The fourth proportional to 150,558.90, 207,837.96 and 105,414.36 is: 145,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,558.90 : 207,837.96 = 105,414.36 : x
  2. Step 2: Convert to fraction form
    150,558.90/207,837.96 = 105,414.36/x
  3. Step 3: Cross multiply
    150,558.90x = 207,837.96 × 105,414.36
  4. Step 4: Simplify right side
    150,558.90x = 21,909,105,537.11
  5. Step 5: Solve for x
    x = 21,909,105,537.11/150,558.90
  6. Step 6: Final answer
    x = 145,518.50

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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.