Home / 190,425.57-285,639.38-57,304.94

Finding the Fourth Proportional to 190,425.57, 285,639.38 and 57,304.94

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Solution

The fourth proportional to 190,425.57, 285,639.38 and 57,304.94 is: 85,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,425.57 : 285,639.38 = 57,304.94 : x
  2. Step 2: Convert to fraction form
    190,425.57/285,639.38 = 57,304.94/x
  3. Step 3: Cross multiply
    190,425.57x = 285,639.38 × 57,304.94
  4. Step 4: Simplify right side
    190,425.57x = 16,368,545,817.82
  5. Step 5: Solve for x
    x = 16,368,545,817.82/190,425.57
  6. Step 6: Final answer
    x = 85,957.71

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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.