Home / 156,457.28-234,739.68-45,665.60

Finding the Fourth Proportional to 156,457.28, 234,739.68 and 45,665.60

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Solution

The fourth proportional to 156,457.28, 234,739.68 and 45,665.60 is: 68,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,457.28 : 234,739.68 = 45,665.60 : x
  2. Step 2: Convert to fraction form
    156,457.28/234,739.68 = 45,665.60/x
  3. Step 3: Cross multiply
    156,457.28x = 234,739.68 × 45,665.60
  4. Step 4: Simplify right side
    156,457.28x = 10,719,528,331.01
  5. Step 5: Solve for x
    x = 10,719,528,331.01/156,457.28
  6. Step 6: Final answer
    x = 68,514.09

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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.