Home / 128,743.80-193,334.40-95,501.40

Finding the Fourth Proportional to 128,743.80, 193,334.40 and 95,501.40

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Solution

The fourth proportional to 128,743.80, 193,334.40 and 95,501.40 is: 143,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,743.80 : 193,334.40 = 95,501.40 : x
  2. Step 2: Convert to fraction form
    128,743.80/193,334.40 = 95,501.40/x
  3. Step 3: Cross multiply
    128,743.80x = 193,334.40 × 95,501.40
  4. Step 4: Simplify right side
    128,743.80x = 18,463,705,868.16
  5. Step 5: Solve for x
    x = 18,463,705,868.16/128,743.80
  6. Step 6: Final answer
    x = 143,414.33

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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.