Home / 136,667.18-188,600.99-76,236.26

Finding the Fourth Proportional to 136,667.18, 188,600.99 and 76,236.26

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Solution

The fourth proportional to 136,667.18, 188,600.99 and 76,236.26 is: 105,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,667.18 : 188,600.99 = 76,236.26 : x
  2. Step 2: Convert to fraction form
    136,667.18/188,600.99 = 76,236.26/x
  3. Step 3: Cross multiply
    136,667.18x = 188,600.99 × 76,236.26
  4. Step 4: Simplify right side
    136,667.18x = 14,378,232,785.71
  5. Step 5: Solve for x
    x = 14,378,232,785.71/136,667.18
  6. Step 6: Final answer
    x = 105,206.18

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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.