Home / 103,272.05-154,915.49-43,240.11

Finding the Fourth Proportional to 103,272.05, 154,915.49 and 43,240.11

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Solution

The fourth proportional to 103,272.05, 154,915.49 and 43,240.11 is: 64,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,272.05 : 154,915.49 = 43,240.11 : x
  2. Step 2: Convert to fraction form
    103,272.05/154,915.49 = 43,240.11/x
  3. Step 3: Cross multiply
    103,272.05x = 154,915.49 × 43,240.11
  4. Step 4: Simplify right side
    103,272.05x = 6,698,562,828.30
  5. Step 5: Solve for x
    x = 6,698,562,828.30/103,272.05
  6. Step 6: Final answer
    x = 64,863.27

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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.