Home / 159,546.37-220,172.88-87,926.45

Finding the Fourth Proportional to 159,546.37, 220,172.88 and 87,926.45

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Solution

The fourth proportional to 159,546.37, 220,172.88 and 87,926.45 is: 121,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,546.37 : 220,172.88 = 87,926.45 : x
  2. Step 2: Convert to fraction form
    159,546.37/220,172.88 = 87,926.45/x
  3. Step 3: Cross multiply
    159,546.37x = 220,172.88 × 87,926.45
  4. Step 4: Simplify right side
    159,546.37x = 19,359,018,623.81
  5. Step 5: Solve for x
    x = 19,359,018,623.81/159,546.37
  6. Step 6: Final answer
    x = 121,337.89

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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.