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Finding the Fourth Proportional to 172,991.08, 238,672.74 and 101,348.20

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Solution

The fourth proportional to 172,991.08, 238,672.74 and 101,348.20 is: 139,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,991.08 : 238,672.74 = 101,348.20 : x
  2. Step 2: Convert to fraction form
    172,991.08/238,672.74 = 101,348.20/x
  3. Step 3: Cross multiply
    172,991.08x = 238,672.74 × 101,348.20
  4. Step 4: Simplify right side
    172,991.08x = 24,189,052,588.07
  5. Step 5: Solve for x
    x = 24,189,052,588.07/172,991.08
  6. Step 6: Final answer
    x = 139,828.32

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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.