Home / 156,756.20-216,215.78-130,843.24

Finding the Fourth Proportional to 156,756.20, 216,215.78 and 130,843.24

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Solution

The fourth proportional to 156,756.20, 216,215.78 and 130,843.24 is: 180,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,756.20 : 216,215.78 = 130,843.24 : x
  2. Step 2: Convert to fraction form
    156,756.20/216,215.78 = 130,843.24/x
  3. Step 3: Cross multiply
    156,756.20x = 216,215.78 × 130,843.24
  4. Step 4: Simplify right side
    156,756.20x = 28,290,373,194.33
  5. Step 5: Solve for x
    x = 28,290,373,194.33/156,756.20
  6. Step 6: Final answer
    x = 180,473.71

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1.5x scale

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.