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Finding the Fourth Proportional to 127,694.80, 191,562.45 and 38,927.98

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Solution

The fourth proportional to 127,694.80, 191,562.45 and 38,927.98 is: 58,398.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,694.80 : 191,562.45 = 38,927.98 : x
  2. Step 2: Convert to fraction form
    127,694.80/191,562.45 = 38,927.98/x
  3. Step 3: Cross multiply
    127,694.80x = 191,562.45 × 38,927.98
  4. Step 4: Simplify right side
    127,694.80x = 7,457,139,222.35
  5. Step 5: Solve for x
    x = 7,457,139,222.35/127,694.80
  6. Step 6: Final answer
    x = 58,398.14

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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.