Home / 203,933.52-305,831.04-77,543.28

Finding the Fourth Proportional to 203,933.52, 305,831.04 and 77,543.28

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Solution

The fourth proportional to 203,933.52, 305,831.04 and 77,543.28 is: 116,288.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,933.52 : 305,831.04 = 77,543.28 : x
  2. Step 2: Convert to fraction form
    203,933.52/305,831.04 = 77,543.28/x
  3. Step 3: Cross multiply
    203,933.52x = 305,831.04 × 77,543.28
  4. Step 4: Simplify right side
    203,933.52x = 23,715,141,967.41
  5. Step 5: Solve for x
    x = 23,715,141,967.41/203,933.52
  6. Step 6: Final answer
    x = 116,288.59

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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.