Home / 105,687.06-145,843.54-63,268.98

Finding the Fourth Proportional to 105,687.06, 145,843.54 and 63,268.98

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Solution

The fourth proportional to 105,687.06, 145,843.54 and 63,268.98 is: 87,308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,687.06 : 145,843.54 = 63,268.98 : x
  2. Step 2: Convert to fraction form
    105,687.06/145,843.54 = 63,268.98/x
  3. Step 3: Cross multiply
    105,687.06x = 145,843.54 × 63,268.98
  4. Step 4: Simplify right side
    105,687.06x = 9,227,372,015.39
  5. Step 5: Solve for x
    x = 9,227,372,015.39/105,687.06
  6. Step 6: Final answer
    x = 87,308.44

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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.