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Finding the Fourth Proportional to 146,544.80, 219,817.20 and 86,669.60

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Solution

The fourth proportional to 146,544.80, 219,817.20 and 86,669.60 is: 130,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,544.80 : 219,817.20 = 86,669.60 : x
  2. Step 2: Convert to fraction form
    146,544.80/219,817.20 = 86,669.60/x
  3. Step 3: Cross multiply
    146,544.80x = 219,817.20 × 86,669.60
  4. Step 4: Simplify right side
    146,544.80x = 19,051,468,797.12
  5. Step 5: Solve for x
    x = 19,051,468,797.12/146,544.80
  6. Step 6: Final answer
    x = 130,004.40

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1.5x scale

Why These Related Problems?

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