Home / 198,117.16-297,175.94-70,128.64

Finding the Fourth Proportional to 198,117.16, 297,175.94 and 70,128.64

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Solution

The fourth proportional to 198,117.16, 297,175.94 and 70,128.64 is: 105,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,117.16 : 297,175.94 = 70,128.64 : x
  2. Step 2: Convert to fraction form
    198,117.16/297,175.94 = 70,128.64/x
  3. Step 3: Cross multiply
    198,117.16x = 297,175.94 × 70,128.64
  4. Step 4: Simplify right side
    198,117.16x = 20,840,544,512.92
  5. Step 5: Solve for x
    x = 20,840,544,512.92/198,117.16
  6. Step 6: Final answer
    x = 105,193.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.