Home / 198,685.66-274,166.57-112,627.67

Finding the Fourth Proportional to 198,685.66, 274,166.57 and 112,627.67

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Solution

The fourth proportional to 198,685.66, 274,166.57 and 112,627.67 is: 155,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,685.66 : 274,166.57 = 112,627.67 : x
  2. Step 2: Convert to fraction form
    198,685.66/274,166.57 = 112,627.67/x
  3. Step 3: Cross multiply
    198,685.66x = 274,166.57 × 112,627.67
  4. Step 4: Simplify right side
    198,685.66x = 30,878,740,881.73
  5. Step 5: Solve for x
    x = 30,878,740,881.73/198,685.66
  6. Step 6: Final answer
    x = 155,415.05

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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.