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Finding the Fourth Proportional to 143,689.58, 215,534.36 and 43,850.28

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Solution

The fourth proportional to 143,689.58, 215,534.36 and 43,850.28 is: 65,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,689.58 : 215,534.36 = 43,850.28 : x
  2. Step 2: Convert to fraction form
    143,689.58/215,534.36 = 43,850.28/x
  3. Step 3: Cross multiply
    143,689.58x = 215,534.36 × 43,850.28
  4. Step 4: Simplify right side
    143,689.58x = 9,451,242,145.25
  5. Step 5: Solve for x
    x = 9,451,242,145.25/143,689.58
  6. Step 6: Final answer
    x = 65,775.42

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1.5x scale

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.