Home / 205,826.06-308,775.90-72,783.56

Finding the Fourth Proportional to 205,826.06, 308,775.90 and 72,783.56

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Solution

The fourth proportional to 205,826.06, 308,775.90 and 72,783.56 is: 109,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,826.06 : 308,775.90 = 72,783.56 : x
  2. Step 2: Convert to fraction form
    205,826.06/308,775.90 = 72,783.56/x
  3. Step 3: Cross multiply
    205,826.06x = 308,775.90 × 72,783.56
  4. Step 4: Simplify right side
    205,826.06x = 22,473,809,244.20
  5. Step 5: Solve for x
    x = 22,473,809,244.20/205,826.06
  6. Step 6: Final answer
    x = 109,188.36

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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.