Home / 125,255.50-172,852.60-68,667.28

Finding the Fourth Proportional to 125,255.50, 172,852.60 and 68,667.28

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Solution

The fourth proportional to 125,255.50, 172,852.60 and 68,667.28 is: 94,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,255.50 : 172,852.60 = 68,667.28 : x
  2. Step 2: Convert to fraction form
    125,255.50/172,852.60 = 68,667.28/x
  3. Step 3: Cross multiply
    125,255.50x = 172,852.60 × 68,667.28
  4. Step 4: Simplify right side
    125,255.50x = 11,869,317,882.93
  5. Step 5: Solve for x
    x = 11,869,317,882.93/125,255.50
  6. Step 6: Final answer
    x = 94,760.85

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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.