Home / 142,919.46-197,214.63-82,509.60

Finding the Fourth Proportional to 142,919.46, 197,214.63 and 82,509.60

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Solution

The fourth proportional to 142,919.46, 197,214.63 and 82,509.60 is: 113,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,919.46 : 197,214.63 = 82,509.60 : x
  2. Step 2: Convert to fraction form
    142,919.46/197,214.63 = 82,509.60/x
  3. Step 3: Cross multiply
    142,919.46x = 197,214.63 × 82,509.60
  4. Step 4: Simplify right side
    142,919.46x = 16,272,100,235.45
  5. Step 5: Solve for x
    x = 16,272,100,235.45/142,919.46
  6. Step 6: Final answer
    x = 113,855.04

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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.