Home / 143,206.56-214,812-49,715.28

Finding the Fourth Proportional to 143,206.56, 214,812 and 49,715.28

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Solution

The fourth proportional to 143,206.56, 214,812 and 49,715.28 is: 74,573.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,206.56 : 214,812 = 49,715.28 : x
  2. Step 2: Convert to fraction form
    143,206.56/214,812 = 49,715.28/x
  3. Step 3: Cross multiply
    143,206.56x = 214,812 × 49,715.28
  4. Step 4: Simplify right side
    143,206.56x = 10,679,438,727.36
  5. Step 5: Solve for x
    x = 10,679,438,727.36/143,206.56
  6. Step 6: Final answer
    x = 74,573.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.