Home / 146,914.20-220,638.60-128,543.40

Finding the Fourth Proportional to 146,914.20, 220,638.60 and 128,543.40

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Solution

The fourth proportional to 146,914.20, 220,638.60 and 128,543.40 is: 193,048.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,914.20 : 220,638.60 = 128,543.40 : x
  2. Step 2: Convert to fraction form
    146,914.20/220,638.60 = 128,543.40/x
  3. Step 3: Cross multiply
    146,914.20x = 220,638.60 × 128,543.40
  4. Step 4: Simplify right side
    146,914.20x = 28,361,635,815.24
  5. Step 5: Solve for x
    x = 28,361,635,815.24/146,914.20
  6. Step 6: Final answer
    x = 193,048.98

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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.