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Finding the Fourth Proportional to 116,475.20, 174,712.80 and 66,555.20

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Solution

The fourth proportional to 116,475.20, 174,712.80 and 66,555.20 is: 99,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,475.20 : 174,712.80 = 66,555.20 : x
  2. Step 2: Convert to fraction form
    116,475.20/174,712.80 = 66,555.20/x
  3. Step 3: Cross multiply
    116,475.20x = 174,712.80 × 66,555.20
  4. Step 4: Simplify right side
    116,475.20x = 11,628,045,346.56
  5. Step 5: Solve for x
    x = 11,628,045,346.56/116,475.20
  6. Step 6: Final answer
    x = 99,832.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.