Home / 127,319.44-175,634.92-86,485.66

Finding the Fourth Proportional to 127,319.44, 175,634.92 and 86,485.66

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Solution

The fourth proportional to 127,319.44, 175,634.92 and 86,485.66 is: 119,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,319.44 : 175,634.92 = 86,485.66 : x
  2. Step 2: Convert to fraction form
    127,319.44/175,634.92 = 86,485.66/x
  3. Step 3: Cross multiply
    127,319.44x = 175,634.92 × 86,485.66
  4. Step 4: Simplify right side
    127,319.44x = 15,189,901,975.25
  5. Step 5: Solve for x
    x = 15,189,901,975.25/127,319.44
  6. Step 6: Final answer
    x = 119,305.44

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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.