Home / 102,336.23-141,234.38-57,021.59

Finding the Fourth Proportional to 102,336.23, 141,234.38 and 57,021.59

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Solution

The fourth proportional to 102,336.23, 141,234.38 and 57,021.59 is: 78,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,336.23 : 141,234.38 = 57,021.59 : x
  2. Step 2: Convert to fraction form
    102,336.23/141,234.38 = 57,021.59/x
  3. Step 3: Cross multiply
    102,336.23x = 141,234.38 × 57,021.59
  4. Step 4: Simplify right side
    102,336.23x = 8,053,407,918.98
  5. Step 5: Solve for x
    x = 8,053,407,918.98/102,336.23
  6. Step 6: Final answer
    x = 78,695.57

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1.5x scale

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.