Home / 100,997.40-151,275.78-83,268.12

Finding the Fourth Proportional to 100,997.40, 151,275.78 and 83,268.12

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Solution

The fourth proportional to 100,997.40, 151,275.78 and 83,268.12 is: 124,720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,997.40 : 151,275.78 = 83,268.12 : x
  2. Step 2: Convert to fraction form
    100,997.40/151,275.78 = 83,268.12/x
  3. Step 3: Cross multiply
    100,997.40x = 151,275.78 × 83,268.12
  4. Step 4: Simplify right side
    100,997.40x = 12,596,449,802.13
  5. Step 5: Solve for x
    x = 12,596,449,802.13/100,997.40
  6. Step 6: Final answer
    x = 124,720.54

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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.