Home / 154,067.98-212,615.22-90,406.84

Finding the Fourth Proportional to 154,067.98, 212,615.22 and 90,406.84

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Solution

The fourth proportional to 154,067.98, 212,615.22 and 90,406.84 is: 124,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,067.98 : 212,615.22 = 90,406.84 : x
  2. Step 2: Convert to fraction form
    154,067.98/212,615.22 = 90,406.84/x
  3. Step 3: Cross multiply
    154,067.98x = 212,615.22 × 90,406.84
  4. Step 4: Simplify right side
    154,067.98x = 19,221,870,176.10
  5. Step 5: Solve for x
    x = 19,221,870,176.10/154,067.98
  6. Step 6: Final answer
    x = 124,762.27

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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.