Home / 125,348.19-172,916.07-82,321.48

Finding the Fourth Proportional to 125,348.19, 172,916.07 and 82,321.48

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Solution

The fourth proportional to 125,348.19, 172,916.07 and 82,321.48 is: 113,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,348.19 : 172,916.07 = 82,321.48 : x
  2. Step 2: Convert to fraction form
    125,348.19/172,916.07 = 82,321.48/x
  3. Step 3: Cross multiply
    125,348.19x = 172,916.07 × 82,321.48
  4. Step 4: Simplify right side
    125,348.19x = 14,234,706,798.18
  5. Step 5: Solve for x
    x = 14,234,706,798.18/125,348.19
  6. Step 6: Final answer
    x = 113,561.33

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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.