Home / 341,766.85-512,699.30-105,129.49

Finding the Fourth Proportional to 341,766.85, 512,699.30 and 105,129.49

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Solution

The fourth proportional to 341,766.85, 512,699.30 and 105,129.49 is: 157,709.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,766.85 : 512,699.30 = 105,129.49 : x
  2. Step 2: Convert to fraction form
    341,766.85/512,699.30 = 105,129.49/x
  3. Step 3: Cross multiply
    341,766.85x = 512,699.30 × 105,129.49
  4. Step 4: Simplify right side
    341,766.85x = 53,899,815,932.36
  5. Step 5: Solve for x
    x = 53,899,815,932.36/341,766.85
  6. Step 6: Final answer
    x = 157,709.32

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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.