Home / 117,520.23-162,179.82-66,531.63

Finding the Fourth Proportional to 117,520.23, 162,179.82 and 66,531.63

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Solution

The fourth proportional to 117,520.23, 162,179.82 and 66,531.63 is: 91,814.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,520.23 : 162,179.82 = 66,531.63 : x
  2. Step 2: Convert to fraction form
    117,520.23/162,179.82 = 66,531.63/x
  3. Step 3: Cross multiply
    117,520.23x = 162,179.82 × 66,531.63
  4. Step 4: Simplify right side
    117,520.23x = 10,790,087,777.71
  5. Step 5: Solve for x
    x = 10,790,087,777.71/117,520.23
  6. Step 6: Final answer
    x = 91,814.73

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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.