Home / 117,578.38-162,169.24-81,750.46

Finding the Fourth Proportional to 117,578.38, 162,169.24 and 81,750.46

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Solution

The fourth proportional to 117,578.38, 162,169.24 and 81,750.46 is: 112,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,578.38 : 162,169.24 = 81,750.46 : x
  2. Step 2: Convert to fraction form
    117,578.38/162,169.24 = 81,750.46/x
  3. Step 3: Cross multiply
    117,578.38x = 162,169.24 × 81,750.46
  4. Step 4: Simplify right side
    117,578.38x = 13,257,409,967.85
  5. Step 5: Solve for x
    x = 13,257,409,967.85/117,578.38
  6. Step 6: Final answer
    x = 112,753.81

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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.