Home / 268,741.08-403,097.04-81,738

Finding the Fourth Proportional to 268,741.08, 403,097.04 and 81,738

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Solution

The fourth proportional to 268,741.08, 403,097.04 and 81,738 is: 122,602.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,741.08 : 403,097.04 = 81,738 : x
  2. Step 2: Convert to fraction form
    268,741.08/403,097.04 = 81,738/x
  3. Step 3: Cross multiply
    268,741.08x = 403,097.04 × 81,738
  4. Step 4: Simplify right side
    268,741.08x = 32,948,345,855.52
  5. Step 5: Solve for x
    x = 32,948,345,855.52/268,741.08
  6. Step 6: Final answer
    x = 122,602.57

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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.