Home / 115,885.36-159,941.82-65,584.36

Finding the Fourth Proportional to 115,885.36, 159,941.82 and 65,584.36

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Solution

The fourth proportional to 115,885.36, 159,941.82 and 65,584.36 is: 90,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,885.36 : 159,941.82 = 65,584.36 : x
  2. Step 2: Convert to fraction form
    115,885.36/159,941.82 = 65,584.36/x
  3. Step 3: Cross multiply
    115,885.36x = 159,941.82 × 65,584.36
  4. Step 4: Simplify right side
    115,885.36x = 10,489,681,901.94
  5. Step 5: Solve for x
    x = 10,489,681,901.94/115,885.36
  6. Step 6: Final answer
    x = 90,517.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.