Home / 149,222.16-205,920.36-82,149.84

Finding the Fourth Proportional to 149,222.16, 205,920.36 and 82,149.84

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Solution

The fourth proportional to 149,222.16, 205,920.36 and 82,149.84 is: 113,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,222.16 : 205,920.36 = 82,149.84 : x
  2. Step 2: Convert to fraction form
    149,222.16/205,920.36 = 82,149.84/x
  3. Step 3: Cross multiply
    149,222.16x = 205,920.36 × 82,149.84
  4. Step 4: Simplify right side
    149,222.16x = 16,916,324,626.74
  5. Step 5: Solve for x
    x = 16,916,324,626.74/149,222.16
  6. Step 6: Final answer
    x = 113,363.35

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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.