Home / 128,799.48-193,062.84-43,328.96

Finding the Fourth Proportional to 128,799.48, 193,062.84 and 43,328.96

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Solution

The fourth proportional to 128,799.48, 193,062.84 and 43,328.96 is: 64,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,799.48 : 193,062.84 = 43,328.96 : x
  2. Step 2: Convert to fraction form
    128,799.48/193,062.84 = 43,328.96/x
  3. Step 3: Cross multiply
    128,799.48x = 193,062.84 × 43,328.96
  4. Step 4: Simplify right side
    128,799.48x = 8,365,212,071.85
  5. Step 5: Solve for x
    x = 8,365,212,071.85/128,799.48
  6. Step 6: Final answer
    x = 64,947.56

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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.