Home / 136,515.06-188,397.21-76,086.14

Finding the Fourth Proportional to 136,515.06, 188,397.21 and 76,086.14

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Solution

The fourth proportional to 136,515.06, 188,397.21 and 76,086.14 is: 105,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,515.06 : 188,397.21 = 76,086.14 : x
  2. Step 2: Convert to fraction form
    136,515.06/188,397.21 = 76,086.14/x
  3. Step 3: Cross multiply
    136,515.06x = 188,397.21 × 76,086.14
  4. Step 4: Simplify right side
    136,515.06x = 14,334,415,553.68
  5. Step 5: Solve for x
    x = 14,334,415,553.68/136,515.06
  6. Step 6: Final answer
    x = 105,002.45

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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.