Home / 154,811.32-213,704.94-104,578.36

Finding the Fourth Proportional to 154,811.32, 213,704.94 and 104,578.36

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Solution

The fourth proportional to 154,811.32, 213,704.94 and 104,578.36 is: 144,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,811.32 : 213,704.94 = 104,578.36 : x
  2. Step 2: Convert to fraction form
    154,811.32/213,704.94 = 104,578.36/x
  3. Step 3: Cross multiply
    154,811.32x = 213,704.94 × 104,578.36
  4. Step 4: Simplify right side
    154,811.32x = 22,348,912,149.10
  5. Step 5: Solve for x
    x = 22,348,912,149.10/154,811.32
  6. Step 6: Final answer
    x = 144,362.26

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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.