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Finding the Fourth Proportional to 121,927, 182,730.12 and 51,719.44

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Solution

The fourth proportional to 121,927, 182,730.12 and 51,719.44 is: 77,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,927 : 182,730.12 = 51,719.44 : x
  2. Step 2: Convert to fraction form
    121,927/182,730.12 = 51,719.44/x
  3. Step 3: Cross multiply
    121,927x = 182,730.12 × 51,719.44
  4. Step 4: Simplify right side
    121,927x = 9,450,699,477.53
  5. Step 5: Solve for x
    x = 9,450,699,477.53/121,927
  6. Step 6: Final answer
    x = 77,511.13

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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.