Home / 137,945.23-206,770.73-78,653.23

Finding the Fourth Proportional to 137,945.23, 206,770.73 and 78,653.23

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Solution

The fourth proportional to 137,945.23, 206,770.73 and 78,653.23 is: 117,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,945.23 : 206,770.73 = 78,653.23 : x
  2. Step 2: Convert to fraction form
    137,945.23/206,770.73 = 78,653.23/x
  3. Step 3: Cross multiply
    137,945.23x = 206,770.73 × 78,653.23
  4. Step 4: Simplify right side
    137,945.23x = 16,263,184,873.76
  5. Step 5: Solve for x
    x = 16,263,184,873.76/137,945.23
  6. Step 6: Final answer
    x = 117,895.96

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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.