Home / 135,768.84-203,587.44-79,627.20

Finding the Fourth Proportional to 135,768.84, 203,587.44 and 79,627.20

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Solution

The fourth proportional to 135,768.84, 203,587.44 and 79,627.20 is: 119,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,768.84 : 203,587.44 = 79,627.20 : x
  2. Step 2: Convert to fraction form
    135,768.84/203,587.44 = 79,627.20/x
  3. Step 3: Cross multiply
    135,768.84x = 203,587.44 × 79,627.20
  4. Step 4: Simplify right side
    135,768.84x = 16,211,097,802.37
  5. Step 5: Solve for x
    x = 16,211,097,802.37/135,768.84
  6. Step 6: Final answer
    x = 119,402.20

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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.