Home / 136,653.08-188,581.55-76,222.17

Finding the Fourth Proportional to 136,653.08, 188,581.55 and 76,222.17

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Solution

The fourth proportional to 136,653.08, 188,581.55 and 76,222.17 is: 105,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,653.08 : 188,581.55 = 76,222.17 : x
  2. Step 2: Convert to fraction form
    136,653.08/188,581.55 = 76,222.17/x
  3. Step 3: Cross multiply
    136,653.08x = 188,581.55 × 76,222.17
  4. Step 4: Simplify right side
    136,653.08x = 14,374,094,581.85
  5. Step 5: Solve for x
    x = 14,374,094,581.85/136,653.08
  6. Step 6: Final answer
    x = 105,186.76

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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.