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Finding the Fourth Proportional to 130,250.54, 179,755.40 and 72,895.61

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Solution

The fourth proportional to 130,250.54, 179,755.40 and 72,895.61 is: 100,601.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,250.54 : 179,755.40 = 72,895.61 : x
  2. Step 2: Convert to fraction form
    130,250.54/179,755.40 = 72,895.61/x
  3. Step 3: Cross multiply
    130,250.54x = 179,755.40 × 72,895.61
  4. Step 4: Simplify right side
    130,250.54x = 13,103,378,270.54
  5. Step 5: Solve for x
    x = 13,103,378,270.54/130,250.54
  6. Step 6: Final answer
    x = 100,601.34

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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.