Home / 117,985.53-162,819.19-64,270.54

Finding the Fourth Proportional to 117,985.53, 162,819.19 and 64,270.54

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Solution

The fourth proportional to 117,985.53, 162,819.19 and 64,270.54 is: 88,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985.53 : 162,819.19 = 64,270.54 : x
  2. Step 2: Convert to fraction form
    117,985.53/162,819.19 = 64,270.54/x
  3. Step 3: Cross multiply
    117,985.53x = 162,819.19 × 64,270.54
  4. Step 4: Simplify right side
    117,985.53x = 10,464,478,115.25
  5. Step 5: Solve for x
    x = 10,464,478,115.25/117,985.53
  6. Step 6: Final answer
    x = 88,692.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.