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Finding the Fourth Proportional to 100,519.05, 150,778.58 and 65,089.65

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Solution

The fourth proportional to 100,519.05, 150,778.58 and 65,089.65 is: 97,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,519.05 : 150,778.58 = 65,089.65 : x
  2. Step 2: Convert to fraction form
    100,519.05/150,778.58 = 65,089.65/x
  3. Step 3: Cross multiply
    100,519.05x = 150,778.58 × 65,089.65
  4. Step 4: Simplify right side
    100,519.05x = 9,814,124,674.25
  5. Step 5: Solve for x
    x = 9,814,124,674.25/100,519.05
  6. Step 6: Final answer
    x = 97,634.48

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1.5x scale

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.