Home / 125,766.38-173,575.23-78,035.11

Finding the Fourth Proportional to 125,766.38, 173,575.23 and 78,035.11

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Solution

The fourth proportional to 125,766.38, 173,575.23 and 78,035.11 is: 107,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,766.38 : 173,575.23 = 78,035.11 : x
  2. Step 2: Convert to fraction form
    125,766.38/173,575.23 = 78,035.11/x
  3. Step 3: Cross multiply
    125,766.38x = 173,575.23 × 78,035.11
  4. Step 4: Simplify right side
    125,766.38x = 13,544,962,166.33
  5. Step 5: Solve for x
    x = 13,544,962,166.33/125,766.38
  6. Step 6: Final answer
    x = 107,699.39

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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.