Home / 196,390.72-271,027.02-111,515.68

Finding the Fourth Proportional to 196,390.72, 271,027.02 and 111,515.68

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Solution

The fourth proportional to 196,390.72, 271,027.02 and 111,515.68 is: 153,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,390.72 : 271,027.02 = 111,515.68 : x
  2. Step 2: Convert to fraction form
    196,390.72/271,027.02 = 111,515.68/x
  3. Step 3: Cross multiply
    196,390.72x = 271,027.02 × 111,515.68
  4. Step 4: Simplify right side
    196,390.72x = 30,223,762,433.67
  5. Step 5: Solve for x
    x = 30,223,762,433.67/196,390.72
  6. Step 6: Final answer
    x = 153,896.08

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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.