Home / 133,971.52-184,881.92-77,381.60

Finding the Fourth Proportional to 133,971.52, 184,881.92 and 77,381.60

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Solution

The fourth proportional to 133,971.52, 184,881.92 and 77,381.60 is: 106,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,971.52 : 184,881.92 = 77,381.60 : x
  2. Step 2: Convert to fraction form
    133,971.52/184,881.92 = 77,381.60/x
  3. Step 3: Cross multiply
    133,971.52x = 184,881.92 × 77,381.60
  4. Step 4: Simplify right side
    133,971.52x = 14,306,458,780.67
  5. Step 5: Solve for x
    x = 14,306,458,780.67/133,971.52
  6. Step 6: Final answer
    x = 106,787.31

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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.