Home / 136,653.14-188,581.61-76,222.22

Finding the Fourth Proportional to 136,653.14, 188,581.61 and 76,222.22

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Solution

The fourth proportional to 136,653.14, 188,581.61 and 76,222.22 is: 105,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,653.14 : 188,581.61 = 76,222.22 : x
  2. Step 2: Convert to fraction form
    136,653.14/188,581.61 = 76,222.22/x
  3. Step 3: Cross multiply
    136,653.14x = 188,581.61 × 76,222.22
  4. Step 4: Simplify right side
    136,653.14x = 14,374,107,641.36
  5. Step 5: Solve for x
    x = 14,374,107,641.36/136,653.14
  6. Step 6: Final answer
    x = 105,186.81

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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.