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Finding the Fourth Proportional to 172,823.76, 238,527.72 and 101,199.60

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Solution

The fourth proportional to 172,823.76, 238,527.72 and 101,199.60 is: 139,673.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,823.76 : 238,527.72 = 101,199.60 : x
  2. Step 2: Convert to fraction form
    172,823.76/238,527.72 = 101,199.60/x
  3. Step 3: Cross multiply
    172,823.76x = 238,527.72 × 101,199.60
  4. Step 4: Simplify right side
    172,823.76x = 24,138,909,852.91
  5. Step 5: Solve for x
    x = 24,138,909,852.91/172,823.76
  6. Step 6: Final answer
    x = 139,673.56

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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.