Home / 155,751.16-214,936.86-92,120.44

Finding the Fourth Proportional to 155,751.16, 214,936.86 and 92,120.44

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Solution

The fourth proportional to 155,751.16, 214,936.86 and 92,120.44 is: 127,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,751.16 : 214,936.86 = 92,120.44 : x
  2. Step 2: Convert to fraction form
    155,751.16/214,936.86 = 92,120.44/x
  3. Step 3: Cross multiply
    155,751.16x = 214,936.86 × 92,120.44
  4. Step 4: Simplify right side
    155,751.16x = 19,800,078,115.42
  5. Step 5: Solve for x
    x = 19,800,078,115.42/155,751.16
  6. Step 6: Final answer
    x = 127,126.36

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1.5x scale

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.