Home / 133,110.43-183,691.48-72,681.04

Finding the Fourth Proportional to 133,110.43, 183,691.48 and 72,681.04

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Solution

The fourth proportional to 133,110.43, 183,691.48 and 72,681.04 is: 100,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.43 : 183,691.48 = 72,681.04 : x
  2. Step 2: Convert to fraction form
    133,110.43/183,691.48 = 72,681.04/x
  3. Step 3: Cross multiply
    133,110.43x = 183,691.48 × 72,681.04
  4. Step 4: Simplify right side
    133,110.43x = 13,350,887,805.54
  5. Step 5: Solve for x
    x = 13,350,887,805.54/133,110.43
  6. Step 6: Final answer
    x = 100,299.34

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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.