Home / 100,319.25-150,491.43-37,128.72

Finding the Fourth Proportional to 100,319.25, 150,491.43 and 37,128.72

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Solution

The fourth proportional to 100,319.25, 150,491.43 and 37,128.72 is: 55,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,319.25 : 150,491.43 = 37,128.72 : x
  2. Step 2: Convert to fraction form
    100,319.25/150,491.43 = 37,128.72/x
  3. Step 3: Cross multiply
    100,319.25x = 150,491.43 × 37,128.72
  4. Step 4: Simplify right side
    100,319.25x = 5,587,554,166.87
  5. Step 5: Solve for x
    x = 5,587,554,166.87/100,319.25
  6. Step 6: Final answer
    x = 55,697.73

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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.