Home / 129,637.29-178,893.05-73,052.31

Finding the Fourth Proportional to 129,637.29, 178,893.05 and 73,052.31

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Solution

The fourth proportional to 129,637.29, 178,893.05 and 73,052.31 is: 100,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637.29 : 178,893.05 = 73,052.31 : x
  2. Step 2: Convert to fraction form
    129,637.29/178,893.05 = 73,052.31/x
  3. Step 3: Cross multiply
    129,637.29x = 178,893.05 × 73,052.31
  4. Step 4: Simplify right side
    129,637.29x = 13,068,550,180.18
  5. Step 5: Solve for x
    x = 13,068,550,180.18/129,637.29
  6. Step 6: Final answer
    x = 100,808.57

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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.