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Finding the Fourth Proportional to 132,615.73, 183,014.54 and 72,183.45

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Solution

The fourth proportional to 132,615.73, 183,014.54 and 72,183.45 is: 99,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.73 : 183,014.54 = 72,183.45 : x
  2. Step 2: Convert to fraction form
    132,615.73/183,014.54 = 72,183.45/x
  3. Step 3: Cross multiply
    132,615.73x = 183,014.54 × 72,183.45
  4. Step 4: Simplify right side
    132,615.73x = 13,210,621,493.44
  5. Step 5: Solve for x
    x = 13,210,621,493.44/132,615.73
  6. Step 6: Final answer
    x = 99,615.79

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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.