Home / 161,895.12-242,784.36-68,408.16

Finding the Fourth Proportional to 161,895.12, 242,784.36 and 68,408.16

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Solution

The fourth proportional to 161,895.12, 242,784.36 and 68,408.16 is: 102,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,895.12 : 242,784.36 = 68,408.16 : x
  2. Step 2: Convert to fraction form
    161,895.12/242,784.36 = 68,408.16/x
  3. Step 3: Cross multiply
    161,895.12x = 242,784.36 × 68,408.16
  4. Step 4: Simplify right side
    161,895.12x = 16,608,431,344.38
  5. Step 5: Solve for x
    x = 16,608,431,344.38/161,895.12
  6. Step 6: Final answer
    x = 102,587.60

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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.