Home / 143,440.48-197,954.88-79,776.92

Finding the Fourth Proportional to 143,440.48, 197,954.88 and 79,776.92

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Solution

The fourth proportional to 143,440.48, 197,954.88 and 79,776.92 is: 110,096.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,440.48 : 197,954.88 = 79,776.92 : x
  2. Step 2: Convert to fraction form
    143,440.48/197,954.88 = 79,776.92/x
  3. Step 3: Cross multiply
    143,440.48x = 197,954.88 × 79,776.92
  4. Step 4: Simplify right side
    143,440.48x = 15,792,230,625.37
  5. Step 5: Solve for x
    x = 15,792,230,625.37/143,440.48
  6. Step 6: Final answer
    x = 110,096.05

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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.