Home / 128,198.20-176,947.97-73,756.60

Finding the Fourth Proportional to 128,198.20, 176,947.97 and 73,756.60

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Solution

The fourth proportional to 128,198.20, 176,947.97 and 73,756.60 is: 101,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,198.20 : 176,947.97 = 73,756.60 : x
  2. Step 2: Convert to fraction form
    128,198.20/176,947.97 = 73,756.60/x
  3. Step 3: Cross multiply
    128,198.20x = 176,947.97 × 73,756.60
  4. Step 4: Simplify right side
    128,198.20x = 13,051,080,644.10
  5. Step 5: Solve for x
    x = 13,051,080,644.10/128,198.20
  6. Step 6: Final answer
    x = 101,803.93

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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.