Home / 172,415.90-238,083.45-127,172.30

Finding the Fourth Proportional to 172,415.90, 238,083.45 and 127,172.30

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Solution

The fourth proportional to 172,415.90, 238,083.45 and 127,172.30 is: 175,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,415.90 : 238,083.45 = 127,172.30 : x
  2. Step 2: Convert to fraction form
    172,415.90/238,083.45 = 127,172.30/x
  3. Step 3: Cross multiply
    172,415.90x = 238,083.45 × 127,172.30
  4. Step 4: Simplify right side
    172,415.90x = 30,277,619,928.44
  5. Step 5: Solve for x
    x = 30,277,619,928.44/172,415.90
  6. Step 6: Final answer
    x = 175,608.05

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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.