Home / 102,689.36-154,091-50,099.28

Finding the Fourth Proportional to 102,689.36, 154,091 and 50,099.28

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Solution

The fourth proportional to 102,689.36, 154,091 and 50,099.28 is: 75,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,689.36 : 154,091 = 50,099.28 : x
  2. Step 2: Convert to fraction form
    102,689.36/154,091 = 50,099.28/x
  3. Step 3: Cross multiply
    102,689.36x = 154,091 × 50,099.28
  4. Step 4: Simplify right side
    102,689.36x = 7,719,848,154.48
  5. Step 5: Solve for x
    x = 7,719,848,154.48/102,689.36
  6. Step 6: Final answer
    x = 75,176.71

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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.