Home / 85,145.85-116,650.44-81,953.55

Finding the Fourth Proportional to 85,145.85, 116,650.44 and 81,953.55

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Solution

The fourth proportional to 85,145.85, 116,650.44 and 81,953.55 is: 112,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,145.85 : 116,650.44 = 81,953.55 : x
  2. Step 2: Convert to fraction form
    85,145.85/116,650.44 = 81,953.55/x
  3. Step 3: Cross multiply
    85,145.85x = 116,650.44 × 81,953.55
  4. Step 4: Simplify right side
    85,145.85x = 9,559,917,667.06
  5. Step 5: Solve for x
    x = 9,559,917,667.06/85,145.85
  6. Step 6: Final answer
    x = 112,276.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.