Home / 102,516.61-153,797.50-31,449.04

Finding the Fourth Proportional to 102,516.61, 153,797.50 and 31,449.04

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Solution

The fourth proportional to 102,516.61, 153,797.50 and 31,449.04 is: 47,180.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,516.61 : 153,797.50 = 31,449.04 : x
  2. Step 2: Convert to fraction form
    102,516.61/153,797.50 = 31,449.04/x
  3. Step 3: Cross multiply
    102,516.61x = 153,797.50 × 31,449.04
  4. Step 4: Simplify right side
    102,516.61x = 4,836,783,729.40
  5. Step 5: Solve for x
    x = 4,836,783,729.40/102,516.61
  6. Step 6: Final answer
    x = 47,180.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.