Home / 156,722.28-216,702-154,190.04

Finding the Fourth Proportional to 156,722.28, 216,702 and 154,190.04

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Solution

The fourth proportional to 156,722.28, 216,702 and 154,190.04 is: 213,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,722.28 : 216,702 = 154,190.04 : x
  2. Step 2: Convert to fraction form
    156,722.28/216,702 = 154,190.04/x
  3. Step 3: Cross multiply
    156,722.28x = 216,702 × 154,190.04
  4. Step 4: Simplify right side
    156,722.28x = 33,413,290,048.08
  5. Step 5: Solve for x
    x = 33,413,290,048.08/156,722.28
  6. Step 6: Final answer
    x = 213,200.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.