Home / 133,858.83-184,732.55-77,288.43

Finding the Fourth Proportional to 133,858.83, 184,732.55 and 77,288.43

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Solution

The fourth proportional to 133,858.83, 184,732.55 and 77,288.43 is: 106,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,858.83 : 184,732.55 = 77,288.43 : x
  2. Step 2: Convert to fraction form
    133,858.83/184,732.55 = 77,288.43/x
  3. Step 3: Cross multiply
    133,858.83x = 184,732.55 × 77,288.43
  4. Step 4: Simplify right side
    133,858.83x = 14,277,688,316.41
  5. Step 5: Solve for x
    x = 14,277,688,316.41/133,858.83
  6. Step 6: Final answer
    x = 106,662.28

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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.