Home / 198,684.68-274,176.51-112,649.45

Finding the Fourth Proportional to 198,684.68, 274,176.51 and 112,649.45

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Solution

The fourth proportional to 198,684.68, 274,176.51 and 112,649.45 is: 155,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,684.68 : 274,176.51 = 112,649.45 : x
  2. Step 2: Convert to fraction form
    198,684.68/274,176.51 = 112,649.45/x
  3. Step 3: Cross multiply
    198,684.68x = 274,176.51 × 112,649.45
  4. Step 4: Simplify right side
    198,684.68x = 30,885,832,349.05
  5. Step 5: Solve for x
    x = 30,885,832,349.05/198,684.68
  6. Step 6: Final answer
    x = 155,451.51

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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.