Home / 198,920.66-274,533.85-111,720.06

Finding the Fourth Proportional to 198,920.66, 274,533.85 and 111,720.06

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Solution

The fourth proportional to 198,920.66, 274,533.85 and 111,720.06 is: 154,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,920.66 : 274,533.85 = 111,720.06 : x
  2. Step 2: Convert to fraction form
    198,920.66/274,533.85 = 111,720.06/x
  3. Step 3: Cross multiply
    198,920.66x = 274,533.85 × 111,720.06
  4. Step 4: Simplify right side
    198,920.66x = 30,670,937,228.40
  5. Step 5: Solve for x
    x = 30,670,937,228.40/198,920.66
  6. Step 6: Final answer
    x = 154,186.79

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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.