Home / 145,830.98-218,747.39-40,650.86

Finding the Fourth Proportional to 145,830.98, 218,747.39 and 40,650.86

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Solution

The fourth proportional to 145,830.98, 218,747.39 and 40,650.86 is: 60,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,830.98 : 218,747.39 = 40,650.86 : x
  2. Step 2: Convert to fraction form
    145,830.98/218,747.39 = 40,650.86/x
  3. Step 3: Cross multiply
    145,830.98x = 218,747.39 × 40,650.86
  4. Step 4: Simplify right side
    145,830.98x = 8,892,269,869.87
  5. Step 5: Solve for x
    x = 8,892,269,869.87/145,830.98
  6. Step 6: Final answer
    x = 60,976.55

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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.