Home / 140,290.31-210,519.30-51,552.78

Finding the Fourth Proportional to 140,290.31, 210,519.30 and 51,552.78

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Solution

The fourth proportional to 140,290.31, 210,519.30 and 51,552.78 is: 77,359.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,290.31 : 210,519.30 = 51,552.78 : x
  2. Step 2: Convert to fraction form
    140,290.31/210,519.30 = 51,552.78/x
  3. Step 3: Cross multiply
    140,290.31x = 210,519.30 × 51,552.78
  4. Step 4: Simplify right side
    140,290.31x = 10,852,855,158.65
  5. Step 5: Solve for x
    x = 10,852,855,158.65/140,290.31
  6. Step 6: Final answer
    x = 77,359.98

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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.