Home / 145,640.42-218,490.44-55,676.75

Finding the Fourth Proportional to 145,640.42, 218,490.44 and 55,676.75

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Solution

The fourth proportional to 145,640.42, 218,490.44 and 55,676.75 is: 83,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,640.42 : 218,490.44 = 55,676.75 : x
  2. Step 2: Convert to fraction form
    145,640.42/218,490.44 = 55,676.75/x
  3. Step 3: Cross multiply
    145,640.42x = 218,490.44 × 55,676.75
  4. Step 4: Simplify right side
    145,640.42x = 12,164,836,234.43
  5. Step 5: Solve for x
    x = 12,164,836,234.43/145,640.42
  6. Step 6: Final answer
    x = 83,526.51

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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.