Home / 129,016.90-178,052.07-97,135.30

Finding the Fourth Proportional to 129,016.90, 178,052.07 and 97,135.30

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Solution

The fourth proportional to 129,016.90, 178,052.07 and 97,135.30 is: 134,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,016.90 : 178,052.07 = 97,135.30 : x
  2. Step 2: Convert to fraction form
    129,016.90/178,052.07 = 97,135.30/x
  3. Step 3: Cross multiply
    129,016.90x = 178,052.07 × 97,135.30
  4. Step 4: Simplify right side
    129,016.90x = 17,295,141,235.07
  5. Step 5: Solve for x
    x = 17,295,141,235.07/129,016.90
  6. Step 6: Final answer
    x = 134,053.30

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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.