Home / 128,923.28-193,384.34-40,176.86

Finding the Fourth Proportional to 128,923.28, 193,384.34 and 40,176.86

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Solution

The fourth proportional to 128,923.28, 193,384.34 and 40,176.86 is: 60,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,923.28 : 193,384.34 = 40,176.86 : x
  2. Step 2: Convert to fraction form
    128,923.28/193,384.34 = 40,176.86/x
  3. Step 3: Cross multiply
    128,923.28x = 193,384.34 × 40,176.86
  4. Step 4: Simplify right side
    128,923.28x = 7,769,575,554.37
  5. Step 5: Solve for x
    x = 7,769,575,554.37/128,923.28
  6. Step 6: Final answer
    x = 60,265.11

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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.