Home / 102,050.51-140,832.75-61,771.64

Finding the Fourth Proportional to 102,050.51, 140,832.75 and 61,771.64

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Solution

The fourth proportional to 102,050.51, 140,832.75 and 61,771.64 is: 85,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,050.51 : 140,832.75 = 61,771.64 : x
  2. Step 2: Convert to fraction form
    102,050.51/140,832.75 = 61,771.64/x
  3. Step 3: Cross multiply
    102,050.51x = 140,832.75 × 61,771.64
  4. Step 4: Simplify right side
    102,050.51x = 8,699,469,229.05
  5. Step 5: Solve for x
    x = 8,699,469,229.05/102,050.51
  6. Step 6: Final answer
    x = 85,246.70

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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.