Home / 142,918.79-214,388.19-43,079.81

Finding the Fourth Proportional to 142,918.79, 214,388.19 and 43,079.81

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Solution

The fourth proportional to 142,918.79, 214,388.19 and 43,079.81 is: 64,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,918.79 : 214,388.19 = 43,079.81 : x
  2. Step 2: Convert to fraction form
    142,918.79/214,388.19 = 43,079.81/x
  3. Step 3: Cross multiply
    142,918.79x = 214,388.19 × 43,079.81
  4. Step 4: Simplify right side
    142,918.79x = 9,235,801,419.50
  5. Step 5: Solve for x
    x = 9,235,801,419.50/142,918.79
  6. Step 6: Final answer
    x = 64,622.73

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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.