Home / 131,087.73-180,916.43-74,507.61

Finding the Fourth Proportional to 131,087.73, 180,916.43 and 74,507.61

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Solution

The fourth proportional to 131,087.73, 180,916.43 and 74,507.61 is: 102,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,087.73 : 180,916.43 = 74,507.61 : x
  2. Step 2: Convert to fraction form
    131,087.73/180,916.43 = 74,507.61/x
  3. Step 3: Cross multiply
    131,087.73x = 180,916.43 × 74,507.61
  4. Step 4: Simplify right side
    131,087.73x = 13,479,650,436.49
  5. Step 5: Solve for x
    x = 13,479,650,436.49/131,087.73
  6. Step 6: Final answer
    x = 102,829.23

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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.