Home / 84,834.12-127,847.01-76,411.18

Finding the Fourth Proportional to 84,834.12, 127,847.01 and 76,411.18

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Solution

The fourth proportional to 84,834.12, 127,847.01 and 76,411.18 is: 115,153.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,834.12 : 127,847.01 = 76,411.18 : x
  2. Step 2: Convert to fraction form
    84,834.12/127,847.01 = 76,411.18/x
  3. Step 3: Cross multiply
    84,834.12x = 127,847.01 × 76,411.18
  4. Step 4: Simplify right side
    84,834.12x = 9,768,940,893.57
  5. Step 5: Solve for x
    x = 9,768,940,893.57/84,834.12
  6. Step 6: Final answer
    x = 115,153.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.