Home / 143,690.02-198,292.21-80,027.80

Finding the Fourth Proportional to 143,690.02, 198,292.21 and 80,027.80

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Solution

The fourth proportional to 143,690.02, 198,292.21 and 80,027.80 is: 110,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,690.02 : 198,292.21 = 80,027.80 : x
  2. Step 2: Convert to fraction form
    143,690.02/198,292.21 = 80,027.80/x
  3. Step 3: Cross multiply
    143,690.02x = 198,292.21 × 80,027.80
  4. Step 4: Simplify right side
    143,690.02x = 15,868,889,323.44
  5. Step 5: Solve for x
    x = 15,868,889,323.44/143,690.02
  6. Step 6: Final answer
    x = 110,438.35

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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.