Home / 106,782.20-160,135.60-46,839.79

Finding the Fourth Proportional to 106,782.20, 160,135.60 and 46,839.79

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Solution

The fourth proportional to 106,782.20, 160,135.60 and 46,839.79 is: 70,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,782.20 : 160,135.60 = 46,839.79 : x
  2. Step 2: Convert to fraction form
    106,782.20/160,135.60 = 46,839.79/x
  3. Step 3: Cross multiply
    106,782.20x = 160,135.60 × 46,839.79
  4. Step 4: Simplify right side
    106,782.20x = 7,500,717,875.52
  5. Step 5: Solve for x
    x = 7,500,717,875.52/106,782.20
  6. Step 6: Final answer
    x = 70,243.15

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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.