Home / 190,513.10-285,780.59-57,379.48

Finding the Fourth Proportional to 190,513.10, 285,780.59 and 57,379.48

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Solution

The fourth proportional to 190,513.10, 285,780.59 and 57,379.48 is: 86,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,513.10 : 285,780.59 = 57,379.48 : x
  2. Step 2: Convert to fraction form
    190,513.10/285,780.59 = 57,379.48/x
  3. Step 3: Cross multiply
    190,513.10x = 285,780.59 × 57,379.48
  4. Step 4: Simplify right side
    190,513.10x = 16,397,941,648.29
  5. Step 5: Solve for x
    x = 16,397,941,648.29/190,513.10
  6. Step 6: Final answer
    x = 86,072.51

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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.