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Finding the Fourth Proportional to 132,237, 182,487.06 and 72,621

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Solution

The fourth proportional to 132,237, 182,487.06 and 72,621 is: 100,216.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,237 : 182,487.06 = 72,621 : x
  2. Step 2: Convert to fraction form
    132,237/182,487.06 = 72,621/x
  3. Step 3: Cross multiply
    132,237x = 182,487.06 × 72,621
  4. Step 4: Simplify right side
    132,237x = 13,252,392,784.26
  5. Step 5: Solve for x
    x = 13,252,392,784.26/132,237
  6. Step 6: Final answer
    x = 100,216.98

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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.