Home / 189,142.62-261,015.22-103,100.02

Finding the Fourth Proportional to 189,142.62, 261,015.22 and 103,100.02

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Solution

The fourth proportional to 189,142.62, 261,015.22 and 103,100.02 is: 142,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,142.62 : 261,015.22 = 103,100.02 : x
  2. Step 2: Convert to fraction form
    189,142.62/261,015.22 = 103,100.02/x
  3. Step 3: Cross multiply
    189,142.62x = 261,015.22 × 103,100.02
  4. Step 4: Simplify right side
    189,142.62x = 26,910,674,402.30
  5. Step 5: Solve for x
    x = 26,910,674,402.30/189,142.62
  6. Step 6: Final answer
    x = 142,277.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.