Home / 124,076.72-171,285.36-76,370.96

Finding the Fourth Proportional to 124,076.72, 171,285.36 and 76,370.96

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Solution

The fourth proportional to 124,076.72, 171,285.36 and 76,370.96 is: 105,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,076.72 : 171,285.36 = 76,370.96 : x
  2. Step 2: Convert to fraction form
    124,076.72/171,285.36 = 76,370.96/x
  3. Step 3: Cross multiply
    124,076.72x = 171,285.36 × 76,370.96
  4. Step 4: Simplify right side
    124,076.72x = 13,081,227,377.15
  5. Step 5: Solve for x
    x = 13,081,227,377.15/124,076.72
  6. Step 6: Final answer
    x = 105,428.54

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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.