Home / 140,515.72-210,731.04-73,919.12

Finding the Fourth Proportional to 140,515.72, 210,731.04 and 73,919.12

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Solution

The fourth proportional to 140,515.72, 210,731.04 and 73,919.12 is: 110,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,515.72 : 210,731.04 = 73,919.12 : x
  2. Step 2: Convert to fraction form
    140,515.72/210,731.04 = 73,919.12/x
  3. Step 3: Cross multiply
    140,515.72x = 210,731.04 × 73,919.12
  4. Step 4: Simplify right side
    140,515.72x = 15,577,053,033.48
  5. Step 5: Solve for x
    x = 15,577,053,033.48/140,515.72
  6. Step 6: Final answer
    x = 110,856.30

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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.