Home / 225,868.02-311,692.25-129,065.73

Finding the Fourth Proportional to 225,868.02, 311,692.25 and 129,065.73

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Solution

The fourth proportional to 225,868.02, 311,692.25 and 129,065.73 is: 178,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,868.02 : 311,692.25 = 129,065.73 : x
  2. Step 2: Convert to fraction form
    225,868.02/311,692.25 = 129,065.73/x
  3. Step 3: Cross multiply
    225,868.02x = 311,692.25 × 129,065.73
  4. Step 4: Simplify right side
    225,868.02x = 40,228,787,962.69
  5. Step 5: Solve for x
    x = 40,228,787,962.69/225,868.02
  6. Step 6: Final answer
    x = 178,107.50

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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.