Home / 133,073.82-183,642.24-72,644.52

Finding the Fourth Proportional to 133,073.82, 183,642.24 and 72,644.52

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Solution

The fourth proportional to 133,073.82, 183,642.24 and 72,644.52 is: 100,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,073.82 : 183,642.24 = 72,644.52 : x
  2. Step 2: Convert to fraction form
    133,073.82/183,642.24 = 72,644.52/x
  3. Step 3: Cross multiply
    133,073.82x = 183,642.24 × 72,644.52
  4. Step 4: Simplify right side
    133,073.82x = 13,340,602,376.52
  5. Step 5: Solve for x
    x = 13,340,602,376.52/133,073.82
  6. Step 6: Final answer
    x = 100,249.64

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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.