Home / 143,215.80-215,053.20-113,877.60

Finding the Fourth Proportional to 143,215.80, 215,053.20 and 113,877.60

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Solution

The fourth proportional to 143,215.80, 215,053.20 and 113,877.60 is: 170,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,215.80 : 215,053.20 = 113,877.60 : x
  2. Step 2: Convert to fraction form
    143,215.80/215,053.20 = 113,877.60/x
  3. Step 3: Cross multiply
    143,215.80x = 215,053.20 × 113,877.60
  4. Step 4: Simplify right side
    143,215.80x = 24,489,742,288.32
  5. Step 5: Solve for x
    x = 24,489,742,288.32/143,215.80
  6. Step 6: Final answer
    x = 170,998.89

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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.