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Finding the Fourth Proportional to 132,631.62, 183,026.01 and 72,201

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Solution

The fourth proportional to 132,631.62, 183,026.01 and 72,201 is: 99,634.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,631.62 : 183,026.01 = 72,201 : x
  2. Step 2: Convert to fraction form
    132,631.62/183,026.01 = 72,201/x
  3. Step 3: Cross multiply
    132,631.62x = 183,026.01 × 72,201
  4. Step 4: Simplify right side
    132,631.62x = 13,214,660,948.01
  5. Step 5: Solve for x
    x = 13,214,660,948.01/132,631.62
  6. Step 6: Final answer
    x = 99,634.32

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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.