Home / 125,838.09-173,680.43-80,535.33

Finding the Fourth Proportional to 125,838.09, 173,680.43 and 80,535.33

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Solution

The fourth proportional to 125,838.09, 173,680.43 and 80,535.33 is: 111,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,838.09 : 173,680.43 = 80,535.33 : x
  2. Step 2: Convert to fraction form
    125,838.09/173,680.43 = 80,535.33/x
  3. Step 3: Cross multiply
    125,838.09x = 173,680.43 × 80,535.33
  4. Step 4: Simplify right side
    125,838.09x = 13,987,410,341.92
  5. Step 5: Solve for x
    x = 13,987,410,341.92/125,838.09
  6. Step 6: Final answer
    x = 111,154.03

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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.