Home / 133,390.36-184,145.52-103,107.16

Finding the Fourth Proportional to 133,390.36, 184,145.52 and 103,107.16

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Solution

The fourth proportional to 133,390.36, 184,145.52 and 103,107.16 is: 142,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,390.36 : 184,145.52 = 103,107.16 : x
  2. Step 2: Convert to fraction form
    133,390.36/184,145.52 = 103,107.16/x
  3. Step 3: Cross multiply
    133,390.36x = 184,145.52 × 103,107.16
  4. Step 4: Simplify right side
    133,390.36x = 18,986,721,593.92
  5. Step 5: Solve for x
    x = 18,986,721,593.92/133,390.36
  6. Step 6: Final answer
    x = 142,339.53

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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.