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Finding the Fourth Proportional to 132,680, 183,098.40 and 73,064

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Solution

The fourth proportional to 132,680, 183,098.40 and 73,064 is: 100,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,680 : 183,098.40 = 73,064 : x
  2. Step 2: Convert to fraction form
    132,680/183,098.40 = 73,064/x
  3. Step 3: Cross multiply
    132,680x = 183,098.40 × 73,064
  4. Step 4: Simplify right side
    132,680x = 13,377,901,497.60
  5. Step 5: Solve for x
    x = 13,377,901,497.60/132,680
  6. Step 6: Final answer
    x = 100,828.32

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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.