Home / 143,213.40-197,633.52-79,552.80

Finding the Fourth Proportional to 143,213.40, 197,633.52 and 79,552.80

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Solution

The fourth proportional to 143,213.40, 197,633.52 and 79,552.80 is: 109,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,213.40 : 197,633.52 = 79,552.80 : x
  2. Step 2: Convert to fraction form
    143,213.40/197,633.52 = 79,552.80/x
  3. Step 3: Cross multiply
    143,213.40x = 197,633.52 × 79,552.80
  4. Step 4: Simplify right side
    143,213.40x = 15,722,299,889.86
  5. Step 5: Solve for x
    x = 15,722,299,889.86/143,213.40
  6. Step 6: Final answer
    x = 109,782.32

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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.