Home / 102,520.03-141,477.21-57,198.05

Finding the Fourth Proportional to 102,520.03, 141,477.21 and 57,198.05

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Solution

The fourth proportional to 102,520.03, 141,477.21 and 57,198.05 is: 78,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,520.03 : 141,477.21 = 57,198.05 : x
  2. Step 2: Convert to fraction form
    102,520.03/141,477.21 = 57,198.05/x
  3. Step 3: Cross multiply
    102,520.03x = 141,477.21 × 57,198.05
  4. Step 4: Simplify right side
    102,520.03x = 8,092,220,193.72
  5. Step 5: Solve for x
    x = 8,092,220,193.72/102,520.03
  6. Step 6: Final answer
    x = 78,933.07

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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.