Home / 259,735.61-389,573.17-70,186.97

Finding the Fourth Proportional to 259,735.61, 389,573.17 and 70,186.97

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Solution

The fourth proportional to 259,735.61, 389,573.17 and 70,186.97 is: 105,272.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,735.61 : 389,573.17 = 70,186.97 : x
  2. Step 2: Convert to fraction form
    259,735.61/389,573.17 = 70,186.97/x
  3. Step 3: Cross multiply
    259,735.61x = 389,573.17 × 70,186.97
  4. Step 4: Simplify right side
    259,735.61x = 27,342,960,395.59
  5. Step 5: Solve for x
    x = 27,342,960,395.59/259,735.61
  6. Step 6: Final answer
    x = 105,272.28

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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.