Home / 124,828.43-172,353.44-77,147.15

Finding the Fourth Proportional to 124,828.43, 172,353.44 and 77,147.15

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Solution

The fourth proportional to 124,828.43, 172,353.44 and 77,147.15 is: 106,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.43 : 172,353.44 = 77,147.15 : x
  2. Step 2: Convert to fraction form
    124,828.43/172,353.44 = 77,147.15/x
  3. Step 3: Cross multiply
    124,828.43x = 172,353.44 × 77,147.15
  4. Step 4: Simplify right side
    124,828.43x = 13,296,576,302.96
  5. Step 5: Solve for x
    x = 13,296,576,302.96/124,828.43
  6. Step 6: Final answer
    x = 106,518.81

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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.