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Finding the Fourth Proportional to 132,692, 183,120.88 and 78,246.36

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Solution

The fourth proportional to 132,692, 183,120.88 and 78,246.36 is: 107,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,692 : 183,120.88 = 78,246.36 : x
  2. Step 2: Convert to fraction form
    132,692/183,120.88 = 78,246.36/x
  3. Step 3: Cross multiply
    132,692x = 183,120.88 × 78,246.36
  4. Step 4: Simplify right side
    132,692x = 14,328,542,300.00
  5. Step 5: Solve for x
    x = 14,328,542,300.00/132,692
  6. Step 6: Final answer
    x = 107,983.47

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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.