Home / 133,795.12-184,635.60-77,205.28

Finding the Fourth Proportional to 133,795.12, 184,635.60 and 77,205.28

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Solution

The fourth proportional to 133,795.12, 184,635.60 and 77,205.28 is: 106,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,795.12 : 184,635.60 = 77,205.28 : x
  2. Step 2: Convert to fraction form
    133,795.12/184,635.60 = 77,205.28/x
  3. Step 3: Cross multiply
    133,795.12x = 184,635.60 × 77,205.28
  4. Step 4: Simplify right side
    133,795.12x = 14,254,843,195.97
  5. Step 5: Solve for x
    x = 14,254,843,195.97/133,795.12
  6. Step 6: Final answer
    x = 106,542.33

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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.