Home / 140,660.82-210,919.46-45,830.03

Finding the Fourth Proportional to 140,660.82, 210,919.46 and 45,830.03

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Solution

The fourth proportional to 140,660.82, 210,919.46 and 45,830.03 is: 68,721.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,660.82 : 210,919.46 = 45,830.03 : x
  2. Step 2: Convert to fraction form
    140,660.82/210,919.46 = 45,830.03/x
  3. Step 3: Cross multiply
    140,660.82x = 210,919.46 × 45,830.03
  4. Step 4: Simplify right side
    140,660.82x = 9,666,443,895.64
  5. Step 5: Solve for x
    x = 9,666,443,895.64/140,660.82
  6. Step 6: Final answer
    x = 68,721.65

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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.