Home / 429,348.20-643,949.39-113,837.00

Finding the Fourth Proportional to 429,348.20, 643,949.39 and 113,837.00

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Solution

The fourth proportional to 429,348.20, 643,949.39 and 113,837.00 is: 170,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,348.20 : 643,949.39 = 113,837.00 : x
  2. Step 2: Convert to fraction form
    429,348.20/643,949.39 = 113,837.00/x
  3. Step 3: Cross multiply
    429,348.20x = 643,949.39 × 113,837.00
  4. Step 4: Simplify right side
    429,348.20x = 73,305,263,774.28
  5. Step 5: Solve for x
    x = 73,305,263,774.28/429,348.20
  6. Step 6: Final answer
    x = 170,736.16

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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.