Home / 136,516.74-188,392.68-76,086.69

Finding the Fourth Proportional to 136,516.74, 188,392.68 and 76,086.69

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Solution

The fourth proportional to 136,516.74, 188,392.68 and 76,086.69 is: 104,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,516.74 : 188,392.68 = 76,086.69 : x
  2. Step 2: Convert to fraction form
    136,516.74/188,392.68 = 76,086.69/x
  3. Step 3: Cross multiply
    136,516.74x = 188,392.68 × 76,086.69
  4. Step 4: Simplify right side
    136,516.74x = 14,334,175,441.43
  5. Step 5: Solve for x
    x = 14,334,175,441.43/136,516.74
  6. Step 6: Final answer
    x = 104,999.40

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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.