Home / 201,975.25-278,713.23-111,331.93

Finding the Fourth Proportional to 201,975.25, 278,713.23 and 111,331.93

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Solution

The fourth proportional to 201,975.25, 278,713.23 and 111,331.93 is: 153,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,975.25 : 278,713.23 = 111,331.93 : x
  2. Step 2: Convert to fraction form
    201,975.25/278,713.23 = 111,331.93/x
  3. Step 3: Cross multiply
    201,975.25x = 278,713.23 × 111,331.93
  4. Step 4: Simplify right side
    201,975.25x = 31,029,681,812.43
  5. Step 5: Solve for x
    x = 31,029,681,812.43/201,975.25
  6. Step 6: Final answer
    x = 153,631.11

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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.