Home / 172,593.38-238,178.81-100,987.26

Finding the Fourth Proportional to 172,593.38, 238,178.81 and 100,987.26

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Solution

The fourth proportional to 172,593.38, 238,178.81 and 100,987.26 is: 139,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,593.38 : 238,178.81 = 100,987.26 : x
  2. Step 2: Convert to fraction form
    172,593.38/238,178.81 = 100,987.26/x
  3. Step 3: Cross multiply
    172,593.38x = 238,178.81 × 100,987.26
  4. Step 4: Simplify right side
    172,593.38x = 24,053,024,771.26
  5. Step 5: Solve for x
    x = 24,053,024,771.26/172,593.38
  6. Step 6: Final answer
    x = 139,362.38

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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.