Home / 143,221.60-214,989.36-113,828.32

Finding the Fourth Proportional to 143,221.60, 214,989.36 and 113,828.32

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Solution

The fourth proportional to 143,221.60, 214,989.36 and 113,828.32 is: 170,867.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,221.60 : 214,989.36 = 113,828.32 : x
  2. Step 2: Convert to fraction form
    143,221.60/214,989.36 = 113,828.32/x
  3. Step 3: Cross multiply
    143,221.60x = 214,989.36 × 113,828.32
  4. Step 4: Simplify right side
    143,221.60x = 24,471,877,666.68
  5. Step 5: Solve for x
    x = 24,471,877,666.68/143,221.60
  6. Step 6: Final answer
    x = 170,867.23

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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.