Home / 128,086.46-192,125.59-57,965.77

Finding the Fourth Proportional to 128,086.46, 192,125.59 and 57,965.77

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Solution

The fourth proportional to 128,086.46, 192,125.59 and 57,965.77 is: 86,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,086.46 : 192,125.59 = 57,965.77 : x
  2. Step 2: Convert to fraction form
    128,086.46/192,125.59 = 57,965.77/x
  3. Step 3: Cross multiply
    128,086.46x = 192,125.59 × 57,965.77
  4. Step 4: Simplify right side
    128,086.46x = 11,136,707,761.05
  5. Step 5: Solve for x
    x = 11,136,707,761.05/128,086.46
  6. Step 6: Final answer
    x = 86,946.80

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1.5x scale

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.