Home / 135,558.36-187,077.96-75,127.72

Finding the Fourth Proportional to 135,558.36, 187,077.96 and 75,127.72

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Solution

The fourth proportional to 135,558.36, 187,077.96 and 75,127.72 is: 103,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,558.36 : 187,077.96 = 75,127.72 : x
  2. Step 2: Convert to fraction form
    135,558.36/187,077.96 = 75,127.72/x
  3. Step 3: Cross multiply
    135,558.36x = 187,077.96 × 75,127.72
  4. Step 4: Simplify right side
    135,558.36x = 14,054,740,597.05
  5. Step 5: Solve for x
    x = 14,054,740,597.05/135,558.36
  6. Step 6: Final answer
    x = 103,680.37

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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.