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Finding the Fourth Proportional to 132,772.60, 183,223.87 and 72,343.74

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Solution

The fourth proportional to 132,772.60, 183,223.87 and 72,343.74 is: 99,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,772.60 : 183,223.87 = 72,343.74 : x
  2. Step 2: Convert to fraction form
    132,772.60/183,223.87 = 72,343.74/x
  3. Step 3: Cross multiply
    132,772.60x = 183,223.87 × 72,343.74
  4. Step 4: Simplify right side
    132,772.60x = 13,255,100,790.59
  5. Step 5: Solve for x
    x = 13,255,100,790.59/132,772.60
  6. Step 6: Final answer
    x = 99,833.10

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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.