Home / 102,530.26-153,818.16-31,462.75

Finding the Fourth Proportional to 102,530.26, 153,818.16 and 31,462.75

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Solution

The fourth proportional to 102,530.26, 153,818.16 and 31,462.75 is: 47,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,530.26 : 153,818.16 = 31,462.75 : x
  2. Step 2: Convert to fraction form
    102,530.26/153,818.16 = 31,462.75/x
  3. Step 3: Cross multiply
    102,530.26x = 153,818.16 × 31,462.75
  4. Step 4: Simplify right side
    102,530.26x = 4,839,542,313.54
  5. Step 5: Solve for x
    x = 4,839,542,313.54/102,530.26
  6. Step 6: Final answer
    x = 47,201.11

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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.