Home / 132,943.25-183,428.89-81,247.16

Finding the Fourth Proportional to 132,943.25, 183,428.89 and 81,247.16

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Solution

The fourth proportional to 132,943.25, 183,428.89 and 81,247.16 is: 112,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,943.25 : 183,428.89 = 81,247.16 : x
  2. Step 2: Convert to fraction form
    132,943.25/183,428.89 = 81,247.16/x
  3. Step 3: Cross multiply
    132,943.25x = 183,428.89 × 81,247.16
  4. Step 4: Simplify right side
    132,943.25x = 14,903,076,629.91
  5. Step 5: Solve for x
    x = 14,903,076,629.91/132,943.25
  6. Step 6: Final answer
    x = 112,101.04

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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.