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Finding the Fourth Proportional to 132,336.75, 182,624.72 and 72,720.75

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Solution

The fourth proportional to 132,336.75, 182,624.72 and 72,720.75 is: 100,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,336.75 : 182,624.72 = 72,720.75 : x
  2. Step 2: Convert to fraction form
    132,336.75/182,624.72 = 72,720.75/x
  3. Step 3: Cross multiply
    132,336.75x = 182,624.72 × 72,720.75
  4. Step 4: Simplify right side
    132,336.75x = 13,280,606,243.34
  5. Step 5: Solve for x
    x = 13,280,606,243.34/132,336.75
  6. Step 6: Final answer
    x = 100,354.64

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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.