Home / 143,634.34-215,448.45-38,453.32

Finding the Fourth Proportional to 143,634.34, 215,448.45 and 38,453.32

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Solution

The fourth proportional to 143,634.34, 215,448.45 and 38,453.32 is: 57,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,634.34 : 215,448.45 = 38,453.32 : x
  2. Step 2: Convert to fraction form
    143,634.34/215,448.45 = 38,453.32/x
  3. Step 3: Cross multiply
    143,634.34x = 215,448.45 × 38,453.32
  4. Step 4: Simplify right side
    143,634.34x = 8,284,708,191.35
  5. Step 5: Solve for x
    x = 8,284,708,191.35/143,634.34
  6. Step 6: Final answer
    x = 57,679.16

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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.