Home / 107,743.21-161,515.04-55,036.45

Finding the Fourth Proportional to 107,743.21, 161,515.04 and 55,036.45

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Solution

The fourth proportional to 107,743.21, 161,515.04 and 55,036.45 is: 82,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,743.21 : 161,515.04 = 55,036.45 : x
  2. Step 2: Convert to fraction form
    107,743.21/161,515.04 = 55,036.45/x
  3. Step 3: Cross multiply
    107,743.21x = 161,515.04 × 55,036.45
  4. Step 4: Simplify right side
    107,743.21x = 8,889,214,148.03
  5. Step 5: Solve for x
    x = 8,889,214,148.03/107,743.21
  6. Step 6: Final answer
    x = 82,503.71

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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.