Home / 140,467.40-210,515.16-73,771.20

Finding the Fourth Proportional to 140,467.40, 210,515.16 and 73,771.20

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Solution

The fourth proportional to 140,467.40, 210,515.16 and 73,771.20 is: 110,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,467.40 : 210,515.16 = 73,771.20 : x
  2. Step 2: Convert to fraction form
    140,467.40/210,515.16 = 73,771.20/x
  3. Step 3: Cross multiply
    140,467.40x = 210,515.16 × 73,771.20
  4. Step 4: Simplify right side
    140,467.40x = 15,529,955,971.39
  5. Step 5: Solve for x
    x = 15,529,955,971.39/140,467.40
  6. Step 6: Final answer
    x = 110,559.15

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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.