Home / 140,021.30-210,007.65-51,229.10

Finding the Fourth Proportional to 140,021.30, 210,007.65 and 51,229.10

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Solution

The fourth proportional to 140,021.30, 210,007.65 and 51,229.10 is: 76,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,021.30 : 210,007.65 = 51,229.10 : x
  2. Step 2: Convert to fraction form
    140,021.30/210,007.65 = 51,229.10/x
  3. Step 3: Cross multiply
    140,021.30x = 210,007.65 × 51,229.10
  4. Step 4: Simplify right side
    140,021.30x = 10,758,502,902.62
  5. Step 5: Solve for x
    x = 10,758,502,902.62/140,021.30
  6. Step 6: Final answer
    x = 76,834.76

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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.