Home / 192,178.88-265,211.16-120,561.92

Finding the Fourth Proportional to 192,178.88, 265,211.16 and 120,561.92

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Solution

The fourth proportional to 192,178.88, 265,211.16 and 120,561.92 is: 166,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,178.88 : 265,211.16 = 120,561.92 : x
  2. Step 2: Convert to fraction form
    192,178.88/265,211.16 = 120,561.92/x
  3. Step 3: Cross multiply
    192,178.88x = 265,211.16 × 120,561.92
  4. Step 4: Simplify right side
    192,178.88x = 31,974,366,655.03
  5. Step 5: Solve for x
    x = 31,974,366,655.03/192,178.88
  6. Step 6: Final answer
    x = 166,378.15

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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.