Home / 196,163.15-294,243-129,899.69

Finding the Fourth Proportional to 196,163.15, 294,243 and 129,899.69

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Solution

The fourth proportional to 196,163.15, 294,243 and 129,899.69 is: 194,848.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,163.15 : 294,243 = 129,899.69 : x
  2. Step 2: Convert to fraction form
    196,163.15/294,243 = 129,899.69/x
  3. Step 3: Cross multiply
    196,163.15x = 294,243 × 129,899.69
  4. Step 4: Simplify right side
    196,163.15x = 38,222,073,013.46
  5. Step 5: Solve for x
    x = 38,222,073,013.46/196,163.15
  6. Step 6: Final answer
    x = 194,848.39

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1.5x scale

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.