Home / 123,928.56-171,036-73,627.60

Finding the Fourth Proportional to 123,928.56, 171,036 and 73,627.60

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Solution

The fourth proportional to 123,928.56, 171,036 and 73,627.60 is: 101,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,928.56 : 171,036 = 73,627.60 : x
  2. Step 2: Convert to fraction form
    123,928.56/171,036 = 73,627.60/x
  3. Step 3: Cross multiply
    123,928.56x = 171,036 × 73,627.60
  4. Step 4: Simplify right side
    123,928.56x = 12,592,970,193.60
  5. Step 5: Solve for x
    x = 12,592,970,193.60/123,928.56
  6. Step 6: Final answer
    x = 101,614.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.