Home / 102,620.10-153,930.15-47,324.10

Finding the Fourth Proportional to 102,620.10, 153,930.15 and 47,324.10

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Solution

The fourth proportional to 102,620.10, 153,930.15 and 47,324.10 is: 70,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,620.10 : 153,930.15 = 47,324.10 : x
  2. Step 2: Convert to fraction form
    102,620.10/153,930.15 = 47,324.10/x
  3. Step 3: Cross multiply
    102,620.10x = 153,930.15 × 47,324.10
  4. Step 4: Simplify right side
    102,620.10x = 7,284,605,811.62
  5. Step 5: Solve for x
    x = 7,284,605,811.62/102,620.10
  6. Step 6: Final answer
    x = 70,986.15

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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.