Home / 86,124.09-129,157.41-36,194.88

Finding the Fourth Proportional to 86,124.09, 129,157.41 and 36,194.88

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Solution

The fourth proportional to 86,124.09, 129,157.41 and 36,194.88 is: 54,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,124.09 : 129,157.41 = 36,194.88 : x
  2. Step 2: Convert to fraction form
    86,124.09/129,157.41 = 36,194.88/x
  3. Step 3: Cross multiply
    86,124.09x = 129,157.41 × 36,194.88
  4. Step 4: Simplify right side
    86,124.09x = 4,674,836,956.06
  5. Step 5: Solve for x
    x = 4,674,836,956.06/86,124.09
  6. Step 6: Final answer
    x = 54,280.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.