Home / 125,914.78-173,710.33-74,917.32

Finding the Fourth Proportional to 125,914.78, 173,710.33 and 74,917.32

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Solution

The fourth proportional to 125,914.78, 173,710.33 and 74,917.32 is: 103,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,914.78 : 173,710.33 = 74,917.32 : x
  2. Step 2: Convert to fraction form
    125,914.78/173,710.33 = 74,917.32/x
  3. Step 3: Cross multiply
    125,914.78x = 173,710.33 × 74,917.32
  4. Step 4: Simplify right side
    125,914.78x = 13,013,912,379.92
  5. Step 5: Solve for x
    x = 13,013,912,379.92/125,914.78
  6. Step 6: Final answer
    x = 103,354.92

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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.