Home / 102,650.20-153,953.70-43,487.80

Finding the Fourth Proportional to 102,650.20, 153,953.70 and 43,487.80

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Solution

The fourth proportional to 102,650.20, 153,953.70 and 43,487.80 is: 65,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,650.20 : 153,953.70 = 43,487.80 : x
  2. Step 2: Convert to fraction form
    102,650.20/153,953.70 = 43,487.80/x
  3. Step 3: Cross multiply
    102,650.20x = 153,953.70 × 43,487.80
  4. Step 4: Simplify right side
    102,650.20x = 6,695,107,714.86
  5. Step 5: Solve for x
    x = 6,695,107,714.86/102,650.20
  6. Step 6: Final answer
    x = 65,222.55

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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.