Home / 172,428.68-258,407.24-130,274.25

Finding the Fourth Proportional to 172,428.68, 258,407.24 and 130,274.25

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Solution

The fourth proportional to 172,428.68, 258,407.24 and 130,274.25 is: 195,233.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,428.68 : 258,407.24 = 130,274.25 : x
  2. Step 2: Convert to fraction form
    172,428.68/258,407.24 = 130,274.25/x
  3. Step 3: Cross multiply
    172,428.68x = 258,407.24 × 130,274.25
  4. Step 4: Simplify right side
    172,428.68x = 33,663,808,734.20
  5. Step 5: Solve for x
    x = 33,663,808,734.20/172,428.68
  6. Step 6: Final answer
    x = 195,233.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.