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Finding the Fourth Proportional to 172,756.23, 238,411.72 and 101,159.32

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Solution

The fourth proportional to 172,756.23, 238,411.72 and 101,159.32 is: 139,604.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,756.23 : 238,411.72 = 101,159.32 : x
  2. Step 2: Convert to fraction form
    172,756.23/238,411.72 = 101,159.32/x
  3. Step 3: Cross multiply
    172,756.23x = 238,411.72 × 101,159.32
  4. Step 4: Simplify right side
    172,756.23x = 24,117,567,222.33
  5. Step 5: Solve for x
    x = 24,117,567,222.33/172,756.23
  6. Step 6: Final answer
    x = 139,604.61

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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.