Home / 103,091.24-154,541.70-71,516.20

Finding the Fourth Proportional to 103,091.24, 154,541.70 and 71,516.20

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Solution

The fourth proportional to 103,091.24, 154,541.70 and 71,516.20 is: 107,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,091.24 : 154,541.70 = 71,516.20 : x
  2. Step 2: Convert to fraction form
    103,091.24/154,541.70 = 71,516.20/x
  3. Step 3: Cross multiply
    103,091.24x = 154,541.70 × 71,516.20
  4. Step 4: Simplify right side
    103,091.24x = 11,052,235,125.54
  5. Step 5: Solve for x
    x = 11,052,235,125.54/103,091.24
  6. Step 6: Final answer
    x = 107,208.29

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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.