Home / 146,786.80-220,180.20-53,280.40

Finding the Fourth Proportional to 146,786.80, 220,180.20 and 53,280.40

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Solution

The fourth proportional to 146,786.80, 220,180.20 and 53,280.40 is: 79,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,786.80 : 220,180.20 = 53,280.40 : x
  2. Step 2: Convert to fraction form
    146,786.80/220,180.20 = 53,280.40/x
  3. Step 3: Cross multiply
    146,786.80x = 220,180.20 × 53,280.40
  4. Step 4: Simplify right side
    146,786.80x = 11,731,289,128.08
  5. Step 5: Solve for x
    x = 11,731,289,128.08/146,786.80
  6. Step 6: Final answer
    x = 79,920.60

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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.