Home / 128,269.44-177,061.32-114,816.96

Finding the Fourth Proportional to 128,269.44, 177,061.32 and 114,816.96

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Solution

The fourth proportional to 128,269.44, 177,061.32 and 114,816.96 is: 158,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,269.44 : 177,061.32 = 114,816.96 : x
  2. Step 2: Convert to fraction form
    128,269.44/177,061.32 = 114,816.96/x
  3. Step 3: Cross multiply
    128,269.44x = 177,061.32 × 114,816.96
  4. Step 4: Simplify right side
    128,269.44x = 20,329,642,495.99
  5. Step 5: Solve for x
    x = 20,329,642,495.99/128,269.44
  6. Step 6: Final answer
    x = 158,491.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.