Home / 143,134.68-197,522.10-79,470.84

Finding the Fourth Proportional to 143,134.68, 197,522.10 and 79,470.84

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Solution

The fourth proportional to 143,134.68, 197,522.10 and 79,470.84 is: 109,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,134.68 : 197,522.10 = 79,470.84 : x
  2. Step 2: Convert to fraction form
    143,134.68/197,522.10 = 79,470.84/x
  3. Step 3: Cross multiply
    143,134.68x = 197,522.10 × 79,470.84
  4. Step 4: Simplify right side
    143,134.68x = 15,697,247,205.56
  5. Step 5: Solve for x
    x = 15,697,247,205.56/143,134.68
  6. Step 6: Final answer
    x = 109,667.67

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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.