Home / 161,839.60-242,629.80-68,268.40

Finding the Fourth Proportional to 161,839.60, 242,629.80 and 68,268.40

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Solution

The fourth proportional to 161,839.60, 242,629.80 and 68,268.40 is: 102,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,839.60 : 242,629.80 = 68,268.40 : x
  2. Step 2: Convert to fraction form
    161,839.60/242,629.80 = 68,268.40/x
  3. Step 3: Cross multiply
    161,839.60x = 242,629.80 × 68,268.40
  4. Step 4: Simplify right side
    161,839.60x = 16,563,948,238.32
  5. Step 5: Solve for x
    x = 16,563,948,238.32/161,839.60
  6. Step 6: Final answer
    x = 102,347.93

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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.