Home / 127,865.03-191,852.85-68,631.50

Finding the Fourth Proportional to 127,865.03, 191,852.85 and 68,631.50

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Solution

The fourth proportional to 127,865.03, 191,852.85 and 68,631.50 is: 102,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,865.03 : 191,852.85 = 68,631.50 : x
  2. Step 2: Convert to fraction form
    127,865.03/191,852.85 = 68,631.50/x
  3. Step 3: Cross multiply
    127,865.03x = 191,852.85 × 68,631.50
  4. Step 4: Simplify right side
    127,865.03x = 13,167,149,611.78
  5. Step 5: Solve for x
    x = 13,167,149,611.78/127,865.03
  6. Step 6: Final answer
    x = 102,976.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.