Home / 189,940.61-284,428.65-113,991.34

Finding the Fourth Proportional to 189,940.61, 284,428.65 and 113,991.34

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Solution

The fourth proportional to 189,940.61, 284,428.65 and 113,991.34 is: 170,697.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,940.61 : 284,428.65 = 113,991.34 : x
  2. Step 2: Convert to fraction form
    189,940.61/284,428.65 = 113,991.34/x
  3. Step 3: Cross multiply
    189,940.61x = 284,428.65 × 113,991.34
  4. Step 4: Simplify right side
    189,940.61x = 32,422,402,947.89
  5. Step 5: Solve for x
    x = 32,422,402,947.89/189,940.61
  6. Step 6: Final answer
    x = 170,697.58

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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.