Home / 156,919.32-235,196.46-72,502.20

Finding the Fourth Proportional to 156,919.32, 235,196.46 and 72,502.20

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Solution

The fourth proportional to 156,919.32, 235,196.46 and 72,502.20 is: 108,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.32 : 235,196.46 = 72,502.20 : x
  2. Step 2: Convert to fraction form
    156,919.32/235,196.46 = 72,502.20/x
  3. Step 3: Cross multiply
    156,919.32x = 235,196.46 × 72,502.20
  4. Step 4: Simplify right side
    156,919.32x = 17,052,260,782.21
  5. Step 5: Solve for x
    x = 17,052,260,782.21/156,919.32
  6. Step 6: Final answer
    x = 108,668.97

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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.