Home / 132,912.46-183,433.43-81,259.87

Finding the Fourth Proportional to 132,912.46, 183,433.43 and 81,259.87

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Solution

The fourth proportional to 132,912.46, 183,433.43 and 81,259.87 is: 112,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,912.46 : 183,433.43 = 81,259.87 : x
  2. Step 2: Convert to fraction form
    132,912.46/183,433.43 = 81,259.87/x
  3. Step 3: Cross multiply
    132,912.46x = 183,433.43 × 81,259.87
  4. Step 4: Simplify right side
    132,912.46x = 14,905,775,790.96
  5. Step 5: Solve for x
    x = 14,905,775,790.96/132,912.46
  6. Step 6: Final answer
    x = 112,147.32

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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.