Home / 83,105.52-125,219.24-68,638.51

Finding the Fourth Proportional to 83,105.52, 125,219.24 and 68,638.51

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Solution

The fourth proportional to 83,105.52, 125,219.24 and 68,638.51 is: 103,421.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,105.52 : 125,219.24 = 68,638.51 : x
  2. Step 2: Convert to fraction form
    83,105.52/125,219.24 = 68,638.51/x
  3. Step 3: Cross multiply
    83,105.52x = 125,219.24 × 68,638.51
  4. Step 4: Simplify right side
    83,105.52x = 8,594,862,056.93
  5. Step 5: Solve for x
    x = 8,594,862,056.93/83,105.52
  6. Step 6: Final answer
    x = 103,421.07

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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.