Home / 121,816.85-182,718.80-38,704.37

Finding the Fourth Proportional to 121,816.85, 182,718.80 and 38,704.37

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Solution

The fourth proportional to 121,816.85, 182,718.80 and 38,704.37 is: 58,054.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,816.85 : 182,718.80 = 38,704.37 : x
  2. Step 2: Convert to fraction form
    121,816.85/182,718.80 = 38,704.37/x
  3. Step 3: Cross multiply
    121,816.85x = 182,718.80 × 38,704.37
  4. Step 4: Simplify right side
    121,816.85x = 7,072,015,847.63
  5. Step 5: Solve for x
    x = 7,072,015,847.63/121,816.85
  6. Step 6: Final answer
    x = 58,054.50

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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.