Home / 132,650.78-183,056.97-72,221.31

Finding the Fourth Proportional to 132,650.78, 183,056.97 and 72,221.31

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Solution

The fourth proportional to 132,650.78, 183,056.97 and 72,221.31 is: 99,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,650.78 : 183,056.97 = 72,221.31 : x
  2. Step 2: Convert to fraction form
    132,650.78/183,056.97 = 72,221.31/x
  3. Step 3: Cross multiply
    132,650.78x = 183,056.97 × 72,221.31
  4. Step 4: Simplify right side
    132,650.78x = 13,220,614,178.03
  5. Step 5: Solve for x
    x = 13,220,614,178.03/132,650.78
  6. Step 6: Final answer
    x = 99,664.81

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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.