Home / 133,331.76-183,910.68-85,509.36

Finding the Fourth Proportional to 133,331.76, 183,910.68 and 85,509.36

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Solution

The fourth proportional to 133,331.76, 183,910.68 and 85,509.36 is: 117,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,331.76 : 183,910.68 = 85,509.36 : x
  2. Step 2: Convert to fraction form
    133,331.76/183,910.68 = 85,509.36/x
  3. Step 3: Cross multiply
    133,331.76x = 183,910.68 × 85,509.36
  4. Step 4: Simplify right side
    133,331.76x = 15,726,084,543.96
  5. Step 5: Solve for x
    x = 15,726,084,543.96/133,331.76
  6. Step 6: Final answer
    x = 117,947.03

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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.