Home / 85,152.06-116,658.88-81,959.75

Finding the Fourth Proportional to 85,152.06, 116,658.88 and 81,959.75

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Solution

The fourth proportional to 85,152.06, 116,658.88 and 81,959.75 is: 112,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,152.06 : 116,658.88 = 81,959.75 : x
  2. Step 2: Convert to fraction form
    85,152.06/116,658.88 = 81,959.75/x
  3. Step 3: Cross multiply
    85,152.06x = 116,658.88 × 81,959.75
  4. Step 4: Simplify right side
    85,152.06x = 9,561,332,750.38
  5. Step 5: Solve for x
    x = 9,561,332,750.38/85,152.06
  6. Step 6: Final answer
    x = 112,285.40

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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.