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Finding the Fourth Proportional to 172,947.18, 238,720.32 and 101,350.32

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Solution

The fourth proportional to 172,947.18, 238,720.32 and 101,350.32 is: 139,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,947.18 : 238,720.32 = 101,350.32 : x
  2. Step 2: Convert to fraction form
    172,947.18/238,720.32 = 101,350.32/x
  3. Step 3: Cross multiply
    172,947.18x = 238,720.32 × 101,350.32
  4. Step 4: Simplify right side
    172,947.18x = 24,194,380,822.50
  5. Step 5: Solve for x
    x = 24,194,380,822.50/172,947.18
  6. Step 6: Final answer
    x = 139,894.62

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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.