Home / 106,101.09-159,153.62-84,942.90

Finding the Fourth Proportional to 106,101.09, 159,153.62 and 84,942.90

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Solution

The fourth proportional to 106,101.09, 159,153.62 and 84,942.90 is: 127,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,101.09 : 159,153.62 = 84,942.90 : x
  2. Step 2: Convert to fraction form
    106,101.09/159,153.62 = 84,942.90/x
  3. Step 3: Cross multiply
    106,101.09x = 159,153.62 × 84,942.90
  4. Step 4: Simplify right side
    106,101.09x = 13,518,969,603.58
  5. Step 5: Solve for x
    x = 13,518,969,603.58/106,101.09
  6. Step 6: Final answer
    x = 127,415.94

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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.