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Finding the Fourth Proportional to 129,911.67, 179,274.69 and 73,322.64

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Solution

The fourth proportional to 129,911.67, 179,274.69 and 73,322.64 is: 101,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,911.67 : 179,274.69 = 73,322.64 : x
  2. Step 2: Convert to fraction form
    129,911.67/179,274.69 = 73,322.64/x
  3. Step 3: Cross multiply
    129,911.67x = 179,274.69 × 73,322.64
  4. Step 4: Simplify right side
    129,911.67x = 13,144,893,555.98
  5. Step 5: Solve for x
    x = 13,144,893,555.98/129,911.67
  6. Step 6: Final answer
    x = 101,183.32

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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.