Home / 154,338.93-213,029.33-90,719.37

Finding the Fourth Proportional to 154,338.93, 213,029.33 and 90,719.37

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Solution

The fourth proportional to 154,338.93, 213,029.33 and 90,719.37 is: 125,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,338.93 : 213,029.33 = 90,719.37 : x
  2. Step 2: Convert to fraction form
    154,338.93/213,029.33 = 90,719.37/x
  3. Step 3: Cross multiply
    154,338.93x = 213,029.33 × 90,719.37
  4. Step 4: Simplify right side
    154,338.93x = 19,325,886,155.53
  5. Step 5: Solve for x
    x = 19,325,886,155.53/154,338.93
  6. Step 6: Final answer
    x = 125,217.18

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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.