Home / 235,485.54-352,456.10-128,705.94

Finding the Fourth Proportional to 235,485.54, 352,456.10 and 128,705.94

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Solution

The fourth proportional to 235,485.54, 352,456.10 and 128,705.94 is: 192,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,485.54 : 352,456.10 = 128,705.94 : x
  2. Step 2: Convert to fraction form
    235,485.54/352,456.10 = 128,705.94/x
  3. Step 3: Cross multiply
    235,485.54x = 352,456.10 × 128,705.94
  4. Step 4: Simplify right side
    235,485.54x = 45,363,193,659.23
  5. Step 5: Solve for x
    x = 45,363,193,659.23/235,485.54
  6. Step 6: Final answer
    x = 192,636.85

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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.