Home / 193,134.80-289,313.40-99,693.20

Finding the Fourth Proportional to 193,134.80, 289,313.40 and 99,693.20

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Solution

The fourth proportional to 193,134.80, 289,313.40 and 99,693.20 is: 149,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,134.80 : 289,313.40 = 99,693.20 : x
  2. Step 2: Convert to fraction form
    193,134.80/289,313.40 = 99,693.20/x
  3. Step 3: Cross multiply
    193,134.80x = 289,313.40 × 99,693.20
  4. Step 4: Simplify right side
    193,134.80x = 28,842,578,648.88
  5. Step 5: Solve for x
    x = 28,842,578,648.88/193,134.80
  6. Step 6: Final answer
    x = 149,339.11

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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.