Home / 128,084.96-192,123.34-57,964.28

Finding the Fourth Proportional to 128,084.96, 192,123.34 and 57,964.28

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Solution

The fourth proportional to 128,084.96, 192,123.34 and 57,964.28 is: 86,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,084.96 : 192,123.34 = 57,964.28 : x
  2. Step 2: Convert to fraction form
    128,084.96/192,123.34 = 57,964.28/x
  3. Step 3: Cross multiply
    128,084.96x = 192,123.34 × 57,964.28
  4. Step 4: Simplify right side
    128,084.96x = 11,136,291,074.30
  5. Step 5: Solve for x
    x = 11,136,291,074.30/128,084.96
  6. Step 6: Final answer
    x = 86,944.56

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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.