Home / 239,669.86-359,634.36-90,012.64

Finding the Fourth Proportional to 239,669.86, 359,634.36 and 90,012.64

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Solution

The fourth proportional to 239,669.86, 359,634.36 and 90,012.64 is: 135,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,669.86 : 359,634.36 = 90,012.64 : x
  2. Step 2: Convert to fraction form
    239,669.86/359,634.36 = 90,012.64/x
  3. Step 3: Cross multiply
    239,669.86x = 359,634.36 × 90,012.64
  4. Step 4: Simplify right side
    239,669.86x = 32,371,638,178.31
  5. Step 5: Solve for x
    x = 32,371,638,178.31/239,669.86
  6. Step 6: Final answer
    x = 135,067.62

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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.