Home / 280,077.39-420,066.27-111,583.62

Finding the Fourth Proportional to 280,077.39, 420,066.27 and 111,583.62

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Solution

The fourth proportional to 280,077.39, 420,066.27 and 111,583.62 is: 167,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,077.39 : 420,066.27 = 111,583.62 : x
  2. Step 2: Convert to fraction form
    280,077.39/420,066.27 = 111,583.62/x
  3. Step 3: Cross multiply
    280,077.39x = 420,066.27 × 111,583.62
  4. Step 4: Simplify right side
    280,077.39x = 46,872,515,046.50
  5. Step 5: Solve for x
    x = 46,872,515,046.50/280,077.39
  6. Step 6: Final answer
    x = 167,355.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.