Home / 142,571.04-196,762.68-82,143.96

Finding the Fourth Proportional to 142,571.04, 196,762.68 and 82,143.96

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Solution

The fourth proportional to 142,571.04, 196,762.68 and 82,143.96 is: 113,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,571.04 : 196,762.68 = 82,143.96 : x
  2. Step 2: Convert to fraction form
    142,571.04/196,762.68 = 82,143.96/x
  3. Step 3: Cross multiply
    142,571.04x = 196,762.68 × 82,143.96
  4. Step 4: Simplify right side
    142,571.04x = 16,162,865,715.41
  5. Step 5: Solve for x
    x = 16,162,865,715.41/142,571.04
  6. Step 6: Final answer
    x = 113,367.10

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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.