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Finding the Fourth Proportional to 172,568.68, 238,096.76 and 103,639.74

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Solution

The fourth proportional to 172,568.68, 238,096.76 and 103,639.74 is: 142,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,568.68 : 238,096.76 = 103,639.74 : x
  2. Step 2: Convert to fraction form
    172,568.68/238,096.76 = 103,639.74/x
  3. Step 3: Cross multiply
    172,568.68x = 238,096.76 × 103,639.74
  4. Step 4: Simplify right side
    172,568.68x = 24,676,286,301.24
  5. Step 5: Solve for x
    x = 24,676,286,301.24/172,568.68
  6. Step 6: Final answer
    x = 142,994.00

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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.