Home / 143,704.98-198,297.86-88,505.51

Finding the Fourth Proportional to 143,704.98, 198,297.86 and 88,505.51

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Solution

The fourth proportional to 143,704.98, 198,297.86 and 88,505.51 is: 122,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,704.98 : 198,297.86 = 88,505.51 : x
  2. Step 2: Convert to fraction form
    143,704.98/198,297.86 = 88,505.51/x
  3. Step 3: Cross multiply
    143,704.98x = 198,297.86 × 88,505.51
  4. Step 4: Simplify right side
    143,704.98x = 17,550,451,797.19
  5. Step 5: Solve for x
    x = 17,550,451,797.19/143,704.98
  6. Step 6: Final answer
    x = 122,128.35

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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.