Home / 117,741.78-162,480.28-66,759.40

Finding the Fourth Proportional to 117,741.78, 162,480.28 and 66,759.40

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Solution

The fourth proportional to 117,741.78, 162,480.28 and 66,759.40 is: 92,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,741.78 : 162,480.28 = 66,759.40 : x
  2. Step 2: Convert to fraction form
    117,741.78/162,480.28 = 66,759.40/x
  3. Step 3: Cross multiply
    117,741.78x = 162,480.28 × 66,759.40
  4. Step 4: Simplify right side
    117,741.78x = 10,847,086,004.63
  5. Step 5: Solve for x
    x = 10,847,086,004.63/117,741.78
  6. Step 6: Final answer
    x = 92,126.06

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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.