Home / 102,615.20-153,939-43,451.24

Finding the Fourth Proportional to 102,615.20, 153,939 and 43,451.24

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Solution

The fourth proportional to 102,615.20, 153,939 and 43,451.24 is: 65,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,615.20 : 153,939 = 43,451.24 : x
  2. Step 2: Convert to fraction form
    102,615.20/153,939 = 43,451.24/x
  3. Step 3: Cross multiply
    102,615.20x = 153,939 × 43,451.24
  4. Step 4: Simplify right side
    102,615.20x = 6,688,840,434.36
  5. Step 5: Solve for x
    x = 6,688,840,434.36/102,615.20
  6. Step 6: Final answer
    x = 65,183.72

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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.