Home / 189,197.66-261,111.05-141,367.97

Finding the Fourth Proportional to 189,197.66, 261,111.05 and 141,367.97

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Solution

The fourth proportional to 189,197.66, 261,111.05 and 141,367.97 is: 195,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,197.66 : 261,111.05 = 141,367.97 : x
  2. Step 2: Convert to fraction form
    189,197.66/261,111.05 = 141,367.97/x
  3. Step 3: Cross multiply
    189,197.66x = 261,111.05 × 141,367.97
  4. Step 4: Simplify right side
    189,197.66x = 36,912,737,070.67
  5. Step 5: Solve for x
    x = 36,912,737,070.67/189,197.66
  6. Step 6: Final answer
    x = 195,101.45

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1.5x scale

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.