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Finding the Fourth Proportional to 117,322.80, 161,998.68 and 108,367.08

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Solution

The fourth proportional to 117,322.80, 161,998.68 and 108,367.08 is: 149,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,322.80 : 161,998.68 = 108,367.08 : x
  2. Step 2: Convert to fraction form
    117,322.80/161,998.68 = 108,367.08/x
  3. Step 3: Cross multiply
    117,322.80x = 161,998.68 × 108,367.08
  4. Step 4: Simplify right side
    117,322.80x = 17,555,323,915.45
  5. Step 5: Solve for x
    x = 17,555,323,915.45/117,322.80
  6. Step 6: Final answer
    x = 149,632.67

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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.