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Finding the Fourth Proportional to 117,868.99, 162,662.66 and 64,157.49

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Solution

The fourth proportional to 117,868.99, 162,662.66 and 64,157.49 is: 88,539.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,868.99 : 162,662.66 = 64,157.49 : x
  2. Step 2: Convert to fraction form
    117,868.99/162,662.66 = 64,157.49/x
  3. Step 3: Cross multiply
    117,868.99x = 162,662.66 × 64,157.49
  4. Step 4: Simplify right side
    117,868.99x = 10,436,027,982.32
  5. Step 5: Solve for x
    x = 10,436,027,982.32/117,868.99
  6. Step 6: Final answer
    x = 88,539.22

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1.5x scale

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.