Home / 125,136.18-172,645.67-71,383.37

Finding the Fourth Proportional to 125,136.18, 172,645.67 and 71,383.37

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Solution

The fourth proportional to 125,136.18, 172,645.67 and 71,383.37 is: 98,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,136.18 : 172,645.67 = 71,383.37 : x
  2. Step 2: Convert to fraction form
    125,136.18/172,645.67 = 71,383.37/x
  3. Step 3: Cross multiply
    125,136.18x = 172,645.67 × 71,383.37
  4. Step 4: Simplify right side
    125,136.18x = 12,324,028,520.36
  5. Step 5: Solve for x
    x = 12,324,028,520.36/125,136.18
  6. Step 6: Final answer
    x = 98,484.93

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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.