Home / 135,621.64-187,157.59-75,190.73

Finding the Fourth Proportional to 135,621.64, 187,157.59 and 75,190.73

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Solution

The fourth proportional to 135,621.64, 187,157.59 and 75,190.73 is: 103,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,621.64 : 187,157.59 = 75,190.73 : x
  2. Step 2: Convert to fraction form
    135,621.64/187,157.59 = 75,190.73/x
  3. Step 3: Cross multiply
    135,621.64x = 187,157.59 × 75,190.73
  4. Step 4: Simplify right side
    135,621.64x = 14,072,515,746.14
  5. Step 5: Solve for x
    x = 14,072,515,746.14/135,621.64
  6. Step 6: Final answer
    x = 103,763.05

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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.