Home / 140,105.62-210,156.39-65,183.86

Finding the Fourth Proportional to 140,105.62, 210,156.39 and 65,183.86

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Solution

The fourth proportional to 140,105.62, 210,156.39 and 65,183.86 is: 97,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,105.62 : 210,156.39 = 65,183.86 : x
  2. Step 2: Convert to fraction form
    140,105.62/210,156.39 = 65,183.86/x
  3. Step 3: Cross multiply
    140,105.62x = 210,156.39 × 65,183.86
  4. Step 4: Simplify right side
    140,105.62x = 13,698,804,703.87
  5. Step 5: Solve for x
    x = 13,698,804,703.87/140,105.62
  6. Step 6: Final answer
    x = 97,774.84

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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.