Home / 129,256.56-193,890.05-45,025.24

Finding the Fourth Proportional to 129,256.56, 193,890.05 and 45,025.24

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Solution

The fourth proportional to 129,256.56, 193,890.05 and 45,025.24 is: 67,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,256.56 : 193,890.05 = 45,025.24 : x
  2. Step 2: Convert to fraction form
    129,256.56/193,890.05 = 45,025.24/x
  3. Step 3: Cross multiply
    129,256.56x = 193,890.05 × 45,025.24
  4. Step 4: Simplify right side
    129,256.56x = 8,729,946,389.79
  5. Step 5: Solve for x
    x = 8,729,946,389.79/129,256.56
  6. Step 6: Final answer
    x = 67,539.68

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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.