Home / 149,126.96-205,803.72-85,475.36

Finding the Fourth Proportional to 149,126.96, 205,803.72 and 85,475.36

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Solution

The fourth proportional to 149,126.96, 205,803.72 and 85,475.36 is: 117,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,126.96 : 205,803.72 = 85,475.36 : x
  2. Step 2: Convert to fraction form
    149,126.96/205,803.72 = 85,475.36/x
  3. Step 3: Cross multiply
    149,126.96x = 205,803.72 × 85,475.36
  4. Step 4: Simplify right side
    149,126.96x = 17,591,147,056.34
  5. Step 5: Solve for x
    x = 17,591,147,056.34/149,126.96
  6. Step 6: Final answer
    x = 117,960.88

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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.