Home / 127,338.12-191,087.37-71,214.98

Finding the Fourth Proportional to 127,338.12, 191,087.37 and 71,214.98

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Solution

The fourth proportional to 127,338.12, 191,087.37 and 71,214.98 is: 106,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,338.12 : 191,087.37 = 71,214.98 : x
  2. Step 2: Convert to fraction form
    127,338.12/191,087.37 = 71,214.98/x
  3. Step 3: Cross multiply
    127,338.12x = 191,087.37 × 71,214.98
  4. Step 4: Simplify right side
    127,338.12x = 13,608,282,277.37
  5. Step 5: Solve for x
    x = 13,608,282,277.37/127,338.12
  6. Step 6: Final answer
    x = 106,867.31

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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.