Home / 107,907.20-161,731.20-55,289.60

Finding the Fourth Proportional to 107,907.20, 161,731.20 and 55,289.60

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Solution

The fourth proportional to 107,907.20, 161,731.20 and 55,289.60 is: 82,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,907.20 : 161,731.20 = 55,289.60 : x
  2. Step 2: Convert to fraction form
    107,907.20/161,731.20 = 55,289.60/x
  3. Step 3: Cross multiply
    107,907.20x = 161,731.20 × 55,289.60
  4. Step 4: Simplify right side
    107,907.20x = 8,942,053,355.52
  5. Step 5: Solve for x
    x = 8,942,053,355.52/107,907.20
  6. Step 6: Final answer
    x = 82,868.00

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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.