Home / 149,031.89-223,059.15-81,460.43

Finding the Fourth Proportional to 149,031.89, 223,059.15 and 81,460.43

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Solution

The fourth proportional to 149,031.89, 223,059.15 and 81,460.43 is: 121,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,031.89 : 223,059.15 = 81,460.43 : x
  2. Step 2: Convert to fraction form
    149,031.89/223,059.15 = 81,460.43/x
  3. Step 3: Cross multiply
    149,031.89x = 223,059.15 × 81,460.43
  4. Step 4: Simplify right side
    149,031.89x = 18,170,494,274.43
  5. Step 5: Solve for x
    x = 18,170,494,274.43/149,031.89
  6. Step 6: Final answer
    x = 121,923.53

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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.