Home / 154,634.03-213,391.34-90,975.92

Finding the Fourth Proportional to 154,634.03, 213,391.34 and 90,975.92

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Solution

The fourth proportional to 154,634.03, 213,391.34 and 90,975.92 is: 125,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,634.03 : 213,391.34 = 90,975.92 : x
  2. Step 2: Convert to fraction form
    154,634.03/213,391.34 = 90,975.92/x
  3. Step 3: Cross multiply
    154,634.03x = 213,391.34 × 90,975.92
  4. Step 4: Simplify right side
    154,634.03x = 19,413,473,476.53
  5. Step 5: Solve for x
    x = 19,413,473,476.53/154,634.03
  6. Step 6: Final answer
    x = 125,544.64

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1.5x scale

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.