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Finding the Fourth Proportional to 100,379.36, 150,594.36 and 70,854.88

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Solution

The fourth proportional to 100,379.36, 150,594.36 and 70,854.88 is: 106,300.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,379.36 : 150,594.36 = 70,854.88 : x
  2. Step 2: Convert to fraction form
    100,379.36/150,594.36 = 70,854.88/x
  3. Step 3: Cross multiply
    100,379.36x = 150,594.36 × 70,854.88
  4. Step 4: Simplify right side
    100,379.36x = 10,670,345,306.48
  5. Step 5: Solve for x
    x = 10,670,345,306.48/100,379.36
  6. Step 6: Final answer
    x = 106,300.19

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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.