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Finding the Fourth Proportional to 130,571.96, 180,244.40 and 88,187.88

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Solution

The fourth proportional to 130,571.96, 180,244.40 and 88,187.88 is: 121,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,571.96 : 180,244.40 = 88,187.88 : x
  2. Step 2: Convert to fraction form
    130,571.96/180,244.40 = 88,187.88/x
  3. Step 3: Cross multiply
    130,571.96x = 180,244.40 × 88,187.88
  4. Step 4: Simplify right side
    130,571.96x = 15,895,371,517.87
  5. Step 5: Solve for x
    x = 15,895,371,517.87/130,571.96
  6. Step 6: Final answer
    x = 121,736.49

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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.