Home / 125,768.36-188,654.62-100,692.20

Finding the Fourth Proportional to 125,768.36, 188,654.62 and 100,692.20

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Solution

The fourth proportional to 125,768.36, 188,654.62 and 100,692.20 is: 151,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,768.36 : 188,654.62 = 100,692.20 : x
  2. Step 2: Convert to fraction form
    125,768.36/188,654.62 = 100,692.20/x
  3. Step 3: Cross multiply
    125,768.36x = 188,654.62 × 100,692.20
  4. Step 4: Simplify right side
    125,768.36x = 18,996,048,727.96
  5. Step 5: Solve for x
    x = 18,996,048,727.96/125,768.36
  6. Step 6: Final answer
    x = 151,039.97

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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.