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Finding the Fourth Proportional to 172,570.70, 238,147.08 and 97,119.20

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Solution

The fourth proportional to 172,570.70, 238,147.08 and 97,119.20 is: 134,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,570.70 : 238,147.08 = 97,119.20 : x
  2. Step 2: Convert to fraction form
    172,570.70/238,147.08 = 97,119.20/x
  3. Step 3: Cross multiply
    172,570.70x = 238,147.08 × 97,119.20
  4. Step 4: Simplify right side
    172,570.70x = 23,128,653,891.94
  5. Step 5: Solve for x
    x = 23,128,653,891.94/172,570.70
  6. Step 6: Final answer
    x = 134,024.22

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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.