Home / 146,821.60-220,232.40-145,439.20

Finding the Fourth Proportional to 146,821.60, 220,232.40 and 145,439.20

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Solution

The fourth proportional to 146,821.60, 220,232.40 and 145,439.20 is: 218,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,821.60 : 220,232.40 = 145,439.20 : x
  2. Step 2: Convert to fraction form
    146,821.60/220,232.40 = 145,439.20/x
  3. Step 3: Cross multiply
    146,821.60x = 220,232.40 × 145,439.20
  4. Step 4: Simplify right side
    146,821.60x = 32,030,424,070.08
  5. Step 5: Solve for x
    x = 32,030,424,070.08/146,821.60
  6. Step 6: Final answer
    x = 218,158.80

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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.