Home / 140,361.14-210,479.18-40,497.60

Finding the Fourth Proportional to 140,361.14, 210,479.18 and 40,497.60

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Solution

The fourth proportional to 140,361.14, 210,479.18 and 40,497.60 is: 60,728.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,361.14 : 210,479.18 = 40,497.60 : x
  2. Step 2: Convert to fraction form
    140,361.14/210,479.18 = 40,497.60/x
  3. Step 3: Cross multiply
    140,361.14x = 210,479.18 × 40,497.60
  4. Step 4: Simplify right side
    140,361.14x = 8,523,901,639.97
  5. Step 5: Solve for x
    x = 8,523,901,639.97/140,361.14
  6. Step 6: Final answer
    x = 60,728.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.