Home / 102,713.12-154,113.60-49,379.48

Finding the Fourth Proportional to 102,713.12, 154,113.60 and 49,379.48

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Solution

The fourth proportional to 102,713.12, 154,113.60 and 49,379.48 is: 74,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,713.12 : 154,113.60 = 49,379.48 : x
  2. Step 2: Convert to fraction form
    102,713.12/154,113.60 = 49,379.48/x
  3. Step 3: Cross multiply
    102,713.12x = 154,113.60 × 49,379.48
  4. Step 4: Simplify right side
    102,713.12x = 7,610,049,428.93
  5. Step 5: Solve for x
    x = 7,610,049,428.93/102,713.12
  6. Step 6: Final answer
    x = 74,090.33

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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.