Home / 149,112.17-205,780.48-85,462.28

Finding the Fourth Proportional to 149,112.17, 205,780.48 and 85,462.28

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Solution

The fourth proportional to 149,112.17, 205,780.48 and 85,462.28 is: 117,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,112.17 : 205,780.48 = 85,462.28 : x
  2. Step 2: Convert to fraction form
    149,112.17/205,780.48 = 85,462.28/x
  3. Step 3: Cross multiply
    149,112.17x = 205,780.48 × 85,462.28
  4. Step 4: Simplify right side
    149,112.17x = 17,586,467,757.74
  5. Step 5: Solve for x
    x = 17,586,467,757.74/149,112.17
  6. Step 6: Final answer
    x = 117,941.20

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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.