Home / 142,856.70-214,287.16-54,086.38

Finding the Fourth Proportional to 142,856.70, 214,287.16 and 54,086.38

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Solution

The fourth proportional to 142,856.70, 214,287.16 and 54,086.38 is: 81,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,856.70 : 214,287.16 = 54,086.38 : x
  2. Step 2: Convert to fraction form
    142,856.70/214,287.16 = 54,086.38/x
  3. Step 3: Cross multiply
    142,856.70x = 214,287.16 × 54,086.38
  4. Step 4: Simplify right side
    142,856.70x = 11,590,016,764.88
  5. Step 5: Solve for x
    x = 11,590,016,764.88/142,856.70
  6. Step 6: Final answer
    x = 81,130.37

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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.