Home / 92,591.36-138,077.70-82,385.36

Finding the Fourth Proportional to 92,591.36, 138,077.70 and 82,385.36

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Solution

The fourth proportional to 92,591.36, 138,077.70 and 82,385.36 is: 122,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,591.36 : 138,077.70 = 82,385.36 : x
  2. Step 2: Convert to fraction form
    92,591.36/138,077.70 = 82,385.36/x
  3. Step 3: Cross multiply
    92,591.36x = 138,077.70 × 82,385.36
  4. Step 4: Simplify right side
    92,591.36x = 11,375,580,332.08
  5. Step 5: Solve for x
    x = 11,375,580,332.08/92,591.36
  6. Step 6: Final answer
    x = 122,857.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.