Home / 155,578.77-214,701.44-91,916.42

Finding the Fourth Proportional to 155,578.77, 214,701.44 and 91,916.42

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Solution

The fourth proportional to 155,578.77, 214,701.44 and 91,916.42 is: 126,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,578.77 : 214,701.44 = 91,916.42 : x
  2. Step 2: Convert to fraction form
    155,578.77/214,701.44 = 91,916.42/x
  3. Step 3: Cross multiply
    155,578.77x = 214,701.44 × 91,916.42
  4. Step 4: Simplify right side
    155,578.77x = 19,734,586,200.56
  5. Step 5: Solve for x
    x = 19,734,586,200.56/155,578.77
  6. Step 6: Final answer
    x = 126,846.27

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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.