Home / 148,725.24-205,241.07-80,742.21

Finding the Fourth Proportional to 148,725.24, 205,241.07 and 80,742.21

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Solution

The fourth proportional to 148,725.24, 205,241.07 and 80,742.21 is: 111,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,725.24 : 205,241.07 = 80,742.21 : x
  2. Step 2: Convert to fraction form
    148,725.24/205,241.07 = 80,742.21/x
  3. Step 3: Cross multiply
    148,725.24x = 205,241.07 × 80,742.21
  4. Step 4: Simplify right side
    148,725.24x = 16,571,617,574.56
  5. Step 5: Solve for x
    x = 16,571,617,574.56/148,725.24
  6. Step 6: Final answer
    x = 111,424.38

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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.