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Finding the Fourth Proportional to 146,555.60, 219,833.40 and 53,128.40

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Solution

The fourth proportional to 146,555.60, 219,833.40 and 53,128.40 is: 79,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,555.60 : 219,833.40 = 53,128.40 : x
  2. Step 2: Convert to fraction form
    146,555.60/219,833.40 = 53,128.40/x
  3. Step 3: Cross multiply
    146,555.60x = 219,833.40 × 53,128.40
  4. Step 4: Simplify right side
    146,555.60x = 11,679,396,808.56
  5. Step 5: Solve for x
    x = 11,679,396,808.56/146,555.60
  6. Step 6: Final answer
    x = 79,692.60

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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.