Home / 190,640.40-285,962.64-57,521.82

Finding the Fourth Proportional to 190,640.40, 285,962.64 and 57,521.82

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Solution

The fourth proportional to 190,640.40, 285,962.64 and 57,521.82 is: 86,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,640.40 : 285,962.64 = 57,521.82 : x
  2. Step 2: Convert to fraction form
    190,640.40/285,962.64 = 57,521.82/x
  3. Step 3: Cross multiply
    190,640.40x = 285,962.64 × 57,521.82
  4. Step 4: Simplify right side
    190,640.40x = 16,449,091,504.80
  5. Step 5: Solve for x
    x = 16,449,091,504.80/190,640.40
  6. Step 6: Final answer
    x = 86,283.35

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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.