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Finding the Fourth Proportional to 142,954.72, 214,454 and 43,101.68

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Solution

The fourth proportional to 142,954.72, 214,454 and 43,101.68 is: 64,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,954.72 : 214,454 = 43,101.68 : x
  2. Step 2: Convert to fraction form
    142,954.72/214,454 = 43,101.68/x
  3. Step 3: Cross multiply
    142,954.72x = 214,454 × 43,101.68
  4. Step 4: Simplify right side
    142,954.72x = 9,243,327,682.72
  5. Step 5: Solve for x
    x = 9,243,327,682.72/142,954.72
  6. Step 6: Final answer
    x = 64,659.13

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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.