Home / 140,309.24-210,515.70-51,620.72

Finding the Fourth Proportional to 140,309.24, 210,515.70 and 51,620.72

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Solution

The fourth proportional to 140,309.24, 210,515.70 and 51,620.72 is: 77,450.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,309.24 : 210,515.70 = 51,620.72 : x
  2. Step 2: Convert to fraction form
    140,309.24/210,515.70 = 51,620.72/x
  3. Step 3: Cross multiply
    140,309.24x = 210,515.70 × 51,620.72
  4. Step 4: Simplify right side
    140,309.24x = 10,866,972,005.30
  5. Step 5: Solve for x
    x = 10,866,972,005.30/140,309.24
  6. Step 6: Final answer
    x = 77,450.15

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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.