Home / 140,247.99-193,516.53-78,984.65

Finding the Fourth Proportional to 140,247.99, 193,516.53 and 78,984.65

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Solution

The fourth proportional to 140,247.99, 193,516.53 and 78,984.65 is: 108,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,247.99 : 193,516.53 = 78,984.65 : x
  2. Step 2: Convert to fraction form
    140,247.99/193,516.53 = 78,984.65/x
  3. Step 3: Cross multiply
    140,247.99x = 193,516.53 × 78,984.65
  4. Step 4: Simplify right side
    140,247.99x = 15,284,835,578.86
  5. Step 5: Solve for x
    x = 15,284,835,578.86/140,247.99
  6. Step 6: Final answer
    x = 108,984.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.