Home / 199,172.08-274,871.04-121,680.88

Finding the Fourth Proportional to 199,172.08, 274,871.04 and 121,680.88

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Solution

The fourth proportional to 199,172.08, 274,871.04 and 121,680.88 is: 167,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,172.08 : 274,871.04 = 121,680.88 : x
  2. Step 2: Convert to fraction form
    199,172.08/274,871.04 = 121,680.88/x
  3. Step 3: Cross multiply
    199,172.08x = 274,871.04 × 121,680.88
  4. Step 4: Simplify right side
    199,172.08x = 33,446,550,033.72
  5. Step 5: Solve for x
    x = 33,446,550,033.72/199,172.08
  6. Step 6: Final answer
    x = 167,927.90

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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.