Home / 128,706.36-193,112.55-56,622.24

Finding the Fourth Proportional to 128,706.36, 193,112.55 and 56,622.24

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Solution

The fourth proportional to 128,706.36, 193,112.55 and 56,622.24 is: 84,956.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,706.36 : 193,112.55 = 56,622.24 : x
  2. Step 2: Convert to fraction form
    128,706.36/193,112.55 = 56,622.24/x
  3. Step 3: Cross multiply
    128,706.36x = 193,112.55 × 56,622.24
  4. Step 4: Simplify right side
    128,706.36x = 10,934,463,904.44
  5. Step 5: Solve for x
    x = 10,934,463,904.44/128,706.36
  6. Step 6: Final answer
    x = 84,956.67

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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.