Home / 205,720.56-308,182.32-116,704.80

Finding the Fourth Proportional to 205,720.56, 308,182.32 and 116,704.80

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Solution

The fourth proportional to 205,720.56, 308,182.32 and 116,704.80 is: 174,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,720.56 : 308,182.32 = 116,704.80 : x
  2. Step 2: Convert to fraction form
    205,720.56/308,182.32 = 116,704.80/x
  3. Step 3: Cross multiply
    205,720.56x = 308,182.32 × 116,704.80
  4. Step 4: Simplify right side
    205,720.56x = 35,966,356,019.14
  5. Step 5: Solve for x
    x = 35,966,356,019.14/205,720.56
  6. Step 6: Final answer
    x = 174,831.12

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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.