Home / 193,037.02-289,456.79-80,686.57

Finding the Fourth Proportional to 193,037.02, 289,456.79 and 80,686.57

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Solution

The fourth proportional to 193,037.02, 289,456.79 and 80,686.57 is: 120,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,037.02 : 289,456.79 = 80,686.57 : x
  2. Step 2: Convert to fraction form
    193,037.02/289,456.79 = 80,686.57/x
  3. Step 3: Cross multiply
    193,037.02x = 289,456.79 × 80,686.57
  4. Step 4: Simplify right side
    193,037.02x = 23,355,275,548.31
  5. Step 5: Solve for x
    x = 23,355,275,548.31/193,037.02
  6. Step 6: Final answer
    x = 120,988.58

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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.