Home / 190,872.20-286,235.40-57,708.20

Finding the Fourth Proportional to 190,872.20, 286,235.40 and 57,708.20

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Solution

The fourth proportional to 190,872.20, 286,235.40 and 57,708.20 is: 86,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,872.20 : 286,235.40 = 57,708.20 : x
  2. Step 2: Convert to fraction form
    190,872.20/286,235.40 = 57,708.20/x
  3. Step 3: Cross multiply
    190,872.20x = 286,235.40 × 57,708.20
  4. Step 4: Simplify right side
    190,872.20x = 16,518,129,710.28
  5. Step 5: Solve for x
    x = 16,518,129,710.28/190,872.20
  6. Step 6: Final answer
    x = 86,540.26

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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.