Home / 77,188.12-106,514.42-43,190.68

Finding the Fourth Proportional to 77,188.12, 106,514.42 and 43,190.68

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Solution

The fourth proportional to 77,188.12, 106,514.42 and 43,190.68 is: 59,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,188.12 : 106,514.42 = 43,190.68 : x
  2. Step 2: Convert to fraction form
    77,188.12/106,514.42 = 43,190.68/x
  3. Step 3: Cross multiply
    77,188.12x = 106,514.42 × 43,190.68
  4. Step 4: Simplify right side
    77,188.12x = 4,600,430,229.61
  5. Step 5: Solve for x
    x = 4,600,430,229.61/77,188.12
  6. Step 6: Final answer
    x = 59,600.24

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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.