Home / 103,764.78-155,669.04-33,638.63

Finding the Fourth Proportional to 103,764.78, 155,669.04 and 33,638.63

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Solution

The fourth proportional to 103,764.78, 155,669.04 and 33,638.63 is: 50,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,764.78 : 155,669.04 = 33,638.63 : x
  2. Step 2: Convert to fraction form
    103,764.78/155,669.04 = 33,638.63/x
  3. Step 3: Cross multiply
    103,764.78x = 155,669.04 × 33,638.63
  4. Step 4: Simplify right side
    103,764.78x = 5,236,492,460.67
  5. Step 5: Solve for x
    x = 5,236,492,460.67/103,764.78
  6. Step 6: Final answer
    x = 50,465.03

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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.