Home / 140,558.20-210,837.30-40,721.65

Finding the Fourth Proportional to 140,558.20, 210,837.30 and 40,721.65

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Solution

The fourth proportional to 140,558.20, 210,837.30 and 40,721.65 is: 61,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,558.20 : 210,837.30 = 40,721.65 : x
  2. Step 2: Convert to fraction form
    140,558.20/210,837.30 = 40,721.65/x
  3. Step 3: Cross multiply
    140,558.20x = 210,837.30 × 40,721.65
  4. Step 4: Simplify right side
    140,558.20x = 8,585,642,737.55
  5. Step 5: Solve for x
    x = 8,585,642,737.55/140,558.20
  6. Step 6: Final answer
    x = 61,082.48

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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.