Home / 128,273.60-192,431.46-39,527.12

Finding the Fourth Proportional to 128,273.60, 192,431.46 and 39,527.12

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Solution

The fourth proportional to 128,273.60, 192,431.46 and 39,527.12 is: 59,297.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,273.60 : 192,431.46 = 39,527.12 : x
  2. Step 2: Convert to fraction form
    128,273.60/192,431.46 = 39,527.12/x
  3. Step 3: Cross multiply
    128,273.60x = 192,431.46 × 39,527.12
  4. Step 4: Simplify right side
    128,273.60x = 7,606,261,411.20
  5. Step 5: Solve for x
    x = 7,606,261,411.20/128,273.60
  6. Step 6: Final answer
    x = 59,297.17

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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.