Home / 165,915.48-248,953.32-81,629.94

Finding the Fourth Proportional to 165,915.48, 248,953.32 and 81,629.94

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Solution

The fourth proportional to 165,915.48, 248,953.32 and 81,629.94 is: 122,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,915.48 : 248,953.32 = 81,629.94 : x
  2. Step 2: Convert to fraction form
    165,915.48/248,953.32 = 81,629.94/x
  3. Step 3: Cross multiply
    165,915.48x = 248,953.32 × 81,629.94
  4. Step 4: Simplify right side
    165,915.48x = 20,322,044,574.40
  5. Step 5: Solve for x
    x = 20,322,044,574.40/165,915.48
  6. Step 6: Final answer
    x = 122,484.32

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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.