Home / 102,516.11-153,796.75-31,448.54

Finding the Fourth Proportional to 102,516.11, 153,796.75 and 31,448.54

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Solution

The fourth proportional to 102,516.11, 153,796.75 and 31,448.54 is: 47,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,516.11 : 153,796.75 = 31,448.54 : x
  2. Step 2: Convert to fraction form
    102,516.11/153,796.75 = 31,448.54/x
  3. Step 3: Cross multiply
    102,516.11x = 153,796.75 × 31,448.54
  4. Step 4: Simplify right side
    102,516.11x = 4,836,683,244.25
  5. Step 5: Solve for x
    x = 4,836,683,244.25/102,516.11
  6. Step 6: Final answer
    x = 47,179.74

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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.