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Finding the Fourth Proportional to 132,810.78, 183,257.40 and 79,094.40

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Solution

The fourth proportional to 132,810.78, 183,257.40 and 79,094.40 is: 109,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,810.78 : 183,257.40 = 79,094.40 : x
  2. Step 2: Convert to fraction form
    132,810.78/183,257.40 = 79,094.40/x
  3. Step 3: Cross multiply
    132,810.78x = 183,257.40 × 79,094.40
  4. Step 4: Simplify right side
    132,810.78x = 14,494,634,098.56
  5. Step 5: Solve for x
    x = 14,494,634,098.56/132,810.78
  6. Step 6: Final answer
    x = 109,137.48

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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.