Home / 134,734.88-202,112.60-78,580.60

Finding the Fourth Proportional to 134,734.88, 202,112.60 and 78,580.60

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Solution

The fourth proportional to 134,734.88, 202,112.60 and 78,580.60 is: 117,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,734.88 : 202,112.60 = 78,580.60 : x
  2. Step 2: Convert to fraction form
    134,734.88/202,112.60 = 78,580.60/x
  3. Step 3: Cross multiply
    134,734.88x = 202,112.60 × 78,580.60
  4. Step 4: Simplify right side
    134,734.88x = 15,882,128,477.38
  5. Step 5: Solve for x
    x = 15,882,128,477.38/134,734.88
  6. Step 6: Final answer
    x = 117,876.89

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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.