Home / 132,093.63-198,129.69-52,128.36

Finding the Fourth Proportional to 132,093.63, 198,129.69 and 52,128.36

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Solution

The fourth proportional to 132,093.63, 198,129.69 and 52,128.36 is: 78,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,093.63 : 198,129.69 = 52,128.36 : x
  2. Step 2: Convert to fraction form
    132,093.63/198,129.69 = 52,128.36/x
  3. Step 3: Cross multiply
    132,093.63x = 198,129.69 × 52,128.36
  4. Step 4: Simplify right side
    132,093.63x = 10,328,175,807.01
  5. Step 5: Solve for x
    x = 10,328,175,807.01/132,093.63
  6. Step 6: Final answer
    x = 78,188.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.