Home / 203,429.02-305,108.70-53,670.86

Finding the Fourth Proportional to 203,429.02, 305,108.70 and 53,670.86

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Solution

The fourth proportional to 203,429.02, 305,108.70 and 53,670.86 is: 80,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,429.02 : 305,108.70 = 53,670.86 : x
  2. Step 2: Convert to fraction form
    203,429.02/305,108.70 = 53,670.86/x
  3. Step 3: Cross multiply
    203,429.02x = 305,108.70 × 53,670.86
  4. Step 4: Simplify right side
    203,429.02x = 16,375,446,322.48
  5. Step 5: Solve for x
    x = 16,375,446,322.48/203,429.02
  6. Step 6: Final answer
    x = 80,497.10

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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.