Home / 208,109.44-312,164.14-88,185.28

Finding the Fourth Proportional to 208,109.44, 312,164.14 and 88,185.28

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Solution

The fourth proportional to 208,109.44, 312,164.14 and 88,185.28 is: 132,277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,109.44 : 312,164.14 = 88,185.28 : x
  2. Step 2: Convert to fraction form
    208,109.44/312,164.14 = 88,185.28/x
  3. Step 3: Cross multiply
    208,109.44x = 312,164.14 × 88,185.28
  4. Step 4: Simplify right side
    208,109.44x = 27,528,282,091.86
  5. Step 5: Solve for x
    x = 27,528,282,091.86/208,109.44
  6. Step 6: Final answer
    x = 132,277.91

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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.