Home / 117,731.46-162,429.66-66,738.72

Finding the Fourth Proportional to 117,731.46, 162,429.66 and 66,738.72

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Solution

The fourth proportional to 117,731.46, 162,429.66 and 66,738.72 is: 92,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,731.46 : 162,429.66 = 66,738.72 : x
  2. Step 2: Convert to fraction form
    117,731.46/162,429.66 = 66,738.72/x
  3. Step 3: Cross multiply
    117,731.46x = 162,429.66 × 66,738.72
  4. Step 4: Simplify right side
    117,731.46x = 10,840,347,598.44
  5. Step 5: Solve for x
    x = 10,840,347,598.44/117,731.46
  6. Step 6: Final answer
    x = 92,076.90

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1.5x scale

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.