Home / 142,622.24-213,772.98-53,815.46

Finding the Fourth Proportional to 142,622.24, 213,772.98 and 53,815.46

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Solution

The fourth proportional to 142,622.24, 213,772.98 and 53,815.46 is: 80,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,622.24 : 213,772.98 = 53,815.46 : x
  2. Step 2: Convert to fraction form
    142,622.24/213,772.98 = 53,815.46/x
  3. Step 3: Cross multiply
    142,622.24x = 213,772.98 × 53,815.46
  4. Step 4: Simplify right side
    142,622.24x = 11,504,291,254.27
  5. Step 5: Solve for x
    x = 11,504,291,254.27/142,622.24
  6. Step 6: Final answer
    x = 80,662.67

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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.