Home / 203,727.05-305,590.62-70,607.40

Finding the Fourth Proportional to 203,727.05, 305,590.62 and 70,607.40

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Solution

The fourth proportional to 203,727.05, 305,590.62 and 70,607.40 is: 105,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,727.05 : 305,590.62 = 70,607.40 : x
  2. Step 2: Convert to fraction form
    203,727.05/305,590.62 = 70,607.40/x
  3. Step 3: Cross multiply
    203,727.05x = 305,590.62 × 70,607.40
  4. Step 4: Simplify right side
    203,727.05x = 21,576,958,261.40
  5. Step 5: Solve for x
    x = 21,576,958,261.40/203,727.05
  6. Step 6: Final answer
    x = 105,911.11

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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.