Home / 154,895.36-213,876-119,028.80

Finding the Fourth Proportional to 154,895.36, 213,876 and 119,028.80

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Solution

The fourth proportional to 154,895.36, 213,876 and 119,028.80 is: 164,352.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,895.36 : 213,876 = 119,028.80 : x
  2. Step 2: Convert to fraction form
    154,895.36/213,876 = 119,028.80/x
  3. Step 3: Cross multiply
    154,895.36x = 213,876 × 119,028.80
  4. Step 4: Simplify right side
    154,895.36x = 25,457,403,628.80
  5. Step 5: Solve for x
    x = 25,457,403,628.80/154,895.36
  6. Step 6: Final answer
    x = 164,352.27

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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.