Home / 143,051.56-214,577.34-76,289.43

Finding the Fourth Proportional to 143,051.56, 214,577.34 and 76,289.43

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Solution

The fourth proportional to 143,051.56, 214,577.34 and 76,289.43 is: 114,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,051.56 : 214,577.34 = 76,289.43 : x
  2. Step 2: Convert to fraction form
    143,051.56/214,577.34 = 76,289.43/x
  3. Step 3: Cross multiply
    143,051.56x = 214,577.34 × 76,289.43
  4. Step 4: Simplify right side
    143,051.56x = 16,369,981,886.63
  5. Step 5: Solve for x
    x = 16,369,981,886.63/143,051.56
  6. Step 6: Final answer
    x = 114,434.14

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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.