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Finding the Fourth Proportional to 104,173.53, 143,759.52 and 56,427

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Solution

The fourth proportional to 104,173.53, 143,759.52 and 56,427 is: 77,869.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,173.53 : 143,759.52 = 56,427 : x
  2. Step 2: Convert to fraction form
    104,173.53/143,759.52 = 56,427/x
  3. Step 3: Cross multiply
    104,173.53x = 143,759.52 × 56,427
  4. Step 4: Simplify right side
    104,173.53x = 8,111,918,435.04
  5. Step 5: Solve for x
    x = 8,111,918,435.04/104,173.53
  6. Step 6: Final answer
    x = 77,869.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.