Home / 133,240.86-183,850.56-78,785.46

Finding the Fourth Proportional to 133,240.86, 183,850.56 and 78,785.46

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Solution

The fourth proportional to 133,240.86, 183,850.56 and 78,785.46 is: 108,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,240.86 : 183,850.56 = 78,785.46 : x
  2. Step 2: Convert to fraction form
    133,240.86/183,850.56 = 78,785.46/x
  3. Step 3: Cross multiply
    133,240.86x = 183,850.56 × 78,785.46
  4. Step 4: Simplify right side
    133,240.86x = 14,484,750,940.86
  5. Step 5: Solve for x
    x = 14,484,750,940.86/133,240.86
  6. Step 6: Final answer
    x = 108,711.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.