Home / 100,446.03-138,614.23-55,124.43

Finding the Fourth Proportional to 100,446.03, 138,614.23 and 55,124.43

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Solution

The fourth proportional to 100,446.03, 138,614.23 and 55,124.43 is: 76,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,446.03 : 138,614.23 = 55,124.43 : x
  2. Step 2: Convert to fraction form
    100,446.03/138,614.23 = 55,124.43/x
  3. Step 3: Cross multiply
    100,446.03x = 138,614.23 × 55,124.43
  4. Step 4: Simplify right side
    100,446.03x = 7,641,030,418.64
  5. Step 5: Solve for x
    x = 7,641,030,418.64/100,446.03
  6. Step 6: Final answer
    x = 76,071.00

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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.