Home / 142,716.75-196,949.12-79,058.67

Finding the Fourth Proportional to 142,716.75, 196,949.12 and 79,058.67

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Solution

The fourth proportional to 142,716.75, 196,949.12 and 79,058.67 is: 109,100.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,716.75 : 196,949.12 = 79,058.67 : x
  2. Step 2: Convert to fraction form
    142,716.75/196,949.12 = 79,058.67/x
  3. Step 3: Cross multiply
    142,716.75x = 196,949.12 × 79,058.67
  4. Step 4: Simplify right side
    142,716.75x = 15,570,535,089.58
  5. Step 5: Solve for x
    x = 15,570,535,089.58/142,716.75
  6. Step 6: Final answer
    x = 109,100.96

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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.