Home / 125,982.54-173,856.38-69,393.78

Finding the Fourth Proportional to 125,982.54, 173,856.38 and 69,393.78

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Solution

The fourth proportional to 125,982.54, 173,856.38 and 69,393.78 is: 95,763.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,982.54 : 173,856.38 = 69,393.78 : x
  2. Step 2: Convert to fraction form
    125,982.54/173,856.38 = 69,393.78/x
  3. Step 3: Cross multiply
    125,982.54x = 173,856.38 × 69,393.78
  4. Step 4: Simplify right side
    125,982.54x = 12,064,551,038.35
  5. Step 5: Solve for x
    x = 12,064,551,038.35/125,982.54
  6. Step 6: Final answer
    x = 95,763.68

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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.