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Finding the Fourth Proportional to 130,250.66, 179,755.56 and 72,895.73

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Solution

The fourth proportional to 130,250.66, 179,755.56 and 72,895.73 is: 100,601.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,250.66 : 179,755.56 = 72,895.73 : x
  2. Step 2: Convert to fraction form
    130,250.66/179,755.56 = 72,895.73/x
  3. Step 3: Cross multiply
    130,250.66x = 179,755.56 × 72,895.73
  4. Step 4: Simplify right side
    130,250.66x = 13,103,411,868.98
  5. Step 5: Solve for x
    x = 13,103,411,868.98/130,250.66
  6. Step 6: Final answer
    x = 100,601.50

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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.