Home / 185,451.40-255,923-100,568.44

Finding the Fourth Proportional to 185,451.40, 255,923 and 100,568.44

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Solution

The fourth proportional to 185,451.40, 255,923 and 100,568.44 is: 138,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,451.40 : 255,923 = 100,568.44 : x
  2. Step 2: Convert to fraction form
    185,451.40/255,923 = 100,568.44/x
  3. Step 3: Cross multiply
    185,451.40x = 255,923 × 100,568.44
  4. Step 4: Simplify right side
    185,451.40x = 25,737,776,870.12
  5. Step 5: Solve for x
    x = 25,737,776,870.12/185,451.40
  6. Step 6: Final answer
    x = 138,784.48

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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.