Home / 103,633.10-155,458.43-28,753.24

Finding the Fourth Proportional to 103,633.10, 155,458.43 and 28,753.24

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Solution

The fourth proportional to 103,633.10, 155,458.43 and 28,753.24 is: 43,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633.10 : 155,458.43 = 28,753.24 : x
  2. Step 2: Convert to fraction form
    103,633.10/155,458.43 = 28,753.24/x
  3. Step 3: Cross multiply
    103,633.10x = 155,458.43 × 28,753.24
  4. Step 4: Simplify right side
    103,633.10x = 4,469,933,547.81
  5. Step 5: Solve for x
    x = 4,469,933,547.81/103,633.10
  6. Step 6: Final answer
    x = 43,132.30

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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.