Home / 146,720.20-219,821.10-120,281.80

Finding the Fourth Proportional to 146,720.20, 219,821.10 and 120,281.80

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Solution

The fourth proportional to 146,720.20, 219,821.10 and 120,281.80 is: 180,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,720.20 : 219,821.10 = 120,281.80 : x
  2. Step 2: Convert to fraction form
    146,720.20/219,821.10 = 120,281.80/x
  3. Step 3: Cross multiply
    146,720.20x = 219,821.10 × 120,281.80
  4. Step 4: Simplify right side
    146,720.20x = 26,440,477,585.98
  5. Step 5: Solve for x
    x = 26,440,477,585.98/146,720.20
  6. Step 6: Final answer
    x = 180,210.21

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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.