Home / 143,419.14-215,120.49-54,681.60

Finding the Fourth Proportional to 143,419.14, 215,120.49 and 54,681.60

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Solution

The fourth proportional to 143,419.14, 215,120.49 and 54,681.60 is: 82,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,419.14 : 215,120.49 = 54,681.60 : x
  2. Step 2: Convert to fraction form
    143,419.14/215,120.49 = 54,681.60/x
  3. Step 3: Cross multiply
    143,419.14x = 215,120.49 × 54,681.60
  4. Step 4: Simplify right side
    143,419.14x = 11,763,132,585.98
  5. Step 5: Solve for x
    x = 11,763,132,585.98/143,419.14
  6. Step 6: Final answer
    x = 82,019.27

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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.