Home / 143,995.77-198,704.88-79,465.59

Finding the Fourth Proportional to 143,995.77, 198,704.88 and 79,465.59

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Solution

The fourth proportional to 143,995.77, 198,704.88 and 79,465.59 is: 109,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.77 : 198,704.88 = 79,465.59 : x
  2. Step 2: Convert to fraction form
    143,995.77/198,704.88 = 79,465.59/x
  3. Step 3: Cross multiply
    143,995.77x = 198,704.88 × 79,465.59
  4. Step 4: Simplify right side
    143,995.77x = 15,790,200,525.08
  5. Step 5: Solve for x
    x = 15,790,200,525.08/143,995.77
  6. Step 6: Final answer
    x = 109,657.39

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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.