Home / 126,235.40-189,122.70-102,734.60

Finding the Fourth Proportional to 126,235.40, 189,122.70 and 102,734.60

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Solution

The fourth proportional to 126,235.40, 189,122.70 and 102,734.60 is: 153,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,235.40 : 189,122.70 = 102,734.60 : x
  2. Step 2: Convert to fraction form
    126,235.40/189,122.70 = 102,734.60/x
  3. Step 3: Cross multiply
    126,235.40x = 189,122.70 × 102,734.60
  4. Step 4: Simplify right side
    126,235.40x = 19,429,444,935.42
  5. Step 5: Solve for x
    x = 19,429,444,935.42/126,235.40
  6. Step 6: Final answer
    x = 153,914.39

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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.