Home / 102,715.12-154,116.60-49,381.48

Finding the Fourth Proportional to 102,715.12, 154,116.60 and 49,381.48

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Solution

The fourth proportional to 102,715.12, 154,116.60 and 49,381.48 is: 74,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,715.12 : 154,116.60 = 49,381.48 : x
  2. Step 2: Convert to fraction form
    102,715.12/154,116.60 = 49,381.48/x
  3. Step 3: Cross multiply
    102,715.12x = 154,116.60 × 49,381.48
  4. Step 4: Simplify right side
    102,715.12x = 7,610,505,800.57
  5. Step 5: Solve for x
    x = 7,610,505,800.57/102,715.12
  6. Step 6: Final answer
    x = 74,093.34

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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.