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Finding the Fourth Proportional to 127,420, 191,122.44 and 38,674.24

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Solution

The fourth proportional to 127,420, 191,122.44 and 38,674.24 is: 58,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,420 : 191,122.44 = 38,674.24 : x
  2. Step 2: Convert to fraction form
    127,420/191,122.44 = 38,674.24/x
  3. Step 3: Cross multiply
    127,420x = 191,122.44 × 38,674.24
  4. Step 4: Simplify right side
    127,420x = 7,391,515,113.95
  5. Step 5: Solve for x
    x = 7,391,515,113.95/127,420
  6. Step 6: Final answer
    x = 58,009.07

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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.