Home / 156,447.68-234,669.12-38,119.20

Finding the Fourth Proportional to 156,447.68, 234,669.12 and 38,119.20

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Solution

The fourth proportional to 156,447.68, 234,669.12 and 38,119.20 is: 57,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,447.68 : 234,669.12 = 38,119.20 : x
  2. Step 2: Convert to fraction form
    156,447.68/234,669.12 = 38,119.20/x
  3. Step 3: Cross multiply
    156,447.68x = 234,669.12 × 38,119.20
  4. Step 4: Simplify right side
    156,447.68x = 8,945,399,119.10
  5. Step 5: Solve for x
    x = 8,945,399,119.10/156,447.68
  6. Step 6: Final answer
    x = 57,178.22

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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.