Home / 220,063.46-303,640.86-129,386.33

Finding the Fourth Proportional to 220,063.46, 303,640.86 and 129,386.33

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Solution

The fourth proportional to 220,063.46, 303,640.86 and 129,386.33 is: 178,525.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,063.46 : 303,640.86 = 129,386.33 : x
  2. Step 2: Convert to fraction form
    220,063.46/303,640.86 = 129,386.33/x
  3. Step 3: Cross multiply
    220,063.46x = 303,640.86 × 129,386.33
  4. Step 4: Simplify right side
    220,063.46x = 39,286,976,513.44
  5. Step 5: Solve for x
    x = 39,286,976,513.44/220,063.46
  6. Step 6: Final answer
    x = 178,525.67

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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.