Home / 111,031.70-166,487.57-57,591.20

Finding the Fourth Proportional to 111,031.70, 166,487.57 and 57,591.20

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Solution

The fourth proportional to 111,031.70, 166,487.57 and 57,591.20 is: 86,355.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,031.70 : 166,487.57 = 57,591.20 : x
  2. Step 2: Convert to fraction form
    111,031.70/166,487.57 = 57,591.20/x
  3. Step 3: Cross multiply
    111,031.70x = 166,487.57 × 57,591.20
  4. Step 4: Simplify right side
    111,031.70x = 9,588,219,501.58
  5. Step 5: Solve for x
    x = 9,588,219,501.58/111,031.70
  6. Step 6: Final answer
    x = 86,355.69

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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.