Home / 133,021.72-183,572.22-75,659.68

Finding the Fourth Proportional to 133,021.72, 183,572.22 and 75,659.68

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Solution

The fourth proportional to 133,021.72, 183,572.22 and 75,659.68 is: 104,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.72 : 183,572.22 = 75,659.68 : x
  2. Step 2: Convert to fraction form
    133,021.72/183,572.22 = 75,659.68/x
  3. Step 3: Cross multiply
    133,021.72x = 183,572.22 × 75,659.68
  4. Step 4: Simplify right side
    133,021.72x = 13,889,015,422.09
  5. Step 5: Solve for x
    x = 13,889,015,422.09/133,021.72
  6. Step 6: Final answer
    x = 104,411.64

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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.