Home / 188,819.60-260,549.67-111,290.18

Finding the Fourth Proportional to 188,819.60, 260,549.67 and 111,290.18

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Solution

The fourth proportional to 188,819.60, 260,549.67 and 111,290.18 is: 153,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,819.60 : 260,549.67 = 111,290.18 : x
  2. Step 2: Convert to fraction form
    188,819.60/260,549.67 = 111,290.18/x
  3. Step 3: Cross multiply
    188,819.60x = 260,549.67 × 111,290.18
  4. Step 4: Simplify right side
    188,819.60x = 28,996,619,673.24
  5. Step 5: Solve for x
    x = 28,996,619,673.24/188,819.60
  6. Step 6: Final answer
    x = 153,567.85

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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.