Home / 68,173.36-102,261.09-21,426.23

Finding the Fourth Proportional to 68,173.36, 102,261.09 and 21,426.23

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Solution

The fourth proportional to 68,173.36, 102,261.09 and 21,426.23 is: 32,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,173.36 : 102,261.09 = 21,426.23 : x
  2. Step 2: Convert to fraction form
    68,173.36/102,261.09 = 21,426.23/x
  3. Step 3: Cross multiply
    68,173.36x = 102,261.09 × 21,426.23
  4. Step 4: Simplify right side
    68,173.36x = 2,191,069,634.39
  5. Step 5: Solve for x
    x = 2,191,069,634.39/68,173.36
  6. Step 6: Final answer
    x = 32,139.68

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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.