Home / 140,533.20-194,037.24-86,891.76

Finding the Fourth Proportional to 140,533.20, 194,037.24 and 86,891.76

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Solution

The fourth proportional to 140,533.20, 194,037.24 and 86,891.76 is: 119,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,533.20 : 194,037.24 = 86,891.76 : x
  2. Step 2: Convert to fraction form
    140,533.20/194,037.24 = 86,891.76/x
  3. Step 3: Cross multiply
    140,533.20x = 194,037.24 × 86,891.76
  4. Step 4: Simplify right side
    140,533.20x = 16,860,237,289.14
  5. Step 5: Solve for x
    x = 16,860,237,289.14/140,533.20
  6. Step 6: Final answer
    x = 119,973.34

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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.