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Finding the Fourth Proportional to 172,803.87, 238,474.40 and 101,177.19

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Solution

The fourth proportional to 172,803.87, 238,474.40 and 101,177.19 is: 139,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,803.87 : 238,474.40 = 101,177.19 : x
  2. Step 2: Convert to fraction form
    172,803.87/238,474.40 = 101,177.19/x
  3. Step 3: Cross multiply
    172,803.87x = 238,474.40 × 101,177.19
  4. Step 4: Simplify right side
    172,803.87x = 24,128,169,173.05
  5. Step 5: Solve for x
    x = 24,128,169,173.05/172,803.87
  6. Step 6: Final answer
    x = 139,627.48

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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.