Home / 132,661.26-183,028.05-78,915.74

Finding the Fourth Proportional to 132,661.26, 183,028.05 and 78,915.74

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Solution

The fourth proportional to 132,661.26, 183,028.05 and 78,915.74 is: 108,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,661.26 : 183,028.05 = 78,915.74 : x
  2. Step 2: Convert to fraction form
    132,661.26/183,028.05 = 78,915.74/x
  3. Step 3: Cross multiply
    132,661.26x = 183,028.05 × 78,915.74
  4. Step 4: Simplify right side
    132,661.26x = 14,443,793,091.37
  5. Step 5: Solve for x
    x = 14,443,793,091.37/132,661.26
  6. Step 6: Final answer
    x = 108,877.25

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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.