Home / 137,902.34-190,313.37-103,850.75

Finding the Fourth Proportional to 137,902.34, 190,313.37 and 103,850.75

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Solution

The fourth proportional to 137,902.34, 190,313.37 and 103,850.75 is: 143,320.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,902.34 : 190,313.37 = 103,850.75 : x
  2. Step 2: Convert to fraction form
    137,902.34/190,313.37 = 103,850.75/x
  3. Step 3: Cross multiply
    137,902.34x = 190,313.37 × 103,850.75
  4. Step 4: Simplify right side
    137,902.34x = 19,764,185,257.96
  5. Step 5: Solve for x
    x = 19,764,185,257.96/137,902.34
  6. Step 6: Final answer
    x = 143,320.16

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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.