Home / 202,720.45-304,232.15-76,485.19

Finding the Fourth Proportional to 202,720.45, 304,232.15 and 76,485.19

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Solution

The fourth proportional to 202,720.45, 304,232.15 and 76,485.19 is: 114,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,720.45 : 304,232.15 = 76,485.19 : x
  2. Step 2: Convert to fraction form
    202,720.45/304,232.15 = 76,485.19/x
  3. Step 3: Cross multiply
    202,720.45x = 304,232.15 × 76,485.19
  4. Step 4: Simplify right side
    202,720.45x = 23,269,253,796.86
  5. Step 5: Solve for x
    x = 23,269,253,796.86/202,720.45
  6. Step 6: Final answer
    x = 114,784.94

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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.