Home / 127,864.98-191,852.79-68,631.45

Finding the Fourth Proportional to 127,864.98, 191,852.79 and 68,631.45

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Solution

The fourth proportional to 127,864.98, 191,852.79 and 68,631.45 is: 102,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,864.98 : 191,852.79 = 68,631.45 : x
  2. Step 2: Convert to fraction form
    127,864.98/191,852.79 = 68,631.45/x
  3. Step 3: Cross multiply
    127,864.98x = 191,852.79 × 68,631.45
  4. Step 4: Simplify right side
    127,864.98x = 13,167,135,164.25
  5. Step 5: Solve for x
    x = 13,167,135,164.25/127,864.98
  6. Step 6: Final answer
    x = 102,976.87

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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.