Home / 172,812.78-238,548.51-135,099.18

Finding the Fourth Proportional to 172,812.78, 238,548.51 and 135,099.18

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Solution

The fourth proportional to 172,812.78, 238,548.51 and 135,099.18 is: 186,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,812.78 : 238,548.51 = 135,099.18 : x
  2. Step 2: Convert to fraction form
    172,812.78/238,548.51 = 135,099.18/x
  3. Step 3: Cross multiply
    172,812.78x = 238,548.51 × 135,099.18
  4. Step 4: Simplify right side
    172,812.78x = 32,227,708,091.22
  5. Step 5: Solve for x
    x = 32,227,708,091.22/172,812.78
  6. Step 6: Final answer
    x = 186,489.15

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1.5x scale

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.