Home / 136,659.15-188,589.91-76,228.23

Finding the Fourth Proportional to 136,659.15, 188,589.91 and 76,228.23

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Solution

The fourth proportional to 136,659.15, 188,589.91 and 76,228.23 is: 105,195.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,659.15 : 188,589.91 = 76,228.23 : x
  2. Step 2: Convert to fraction form
    136,659.15/188,589.91 = 76,228.23/x
  3. Step 3: Cross multiply
    136,659.15x = 188,589.91 × 76,228.23
  4. Step 4: Simplify right side
    136,659.15x = 14,375,875,035.16
  5. Step 5: Solve for x
    x = 14,375,875,035.16/136,659.15
  6. Step 6: Final answer
    x = 105,195.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.