Home / 189,938.11-284,424.90-113,988.84

Finding the Fourth Proportional to 189,938.11, 284,424.90 and 113,988.84

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Solution

The fourth proportional to 189,938.11, 284,424.90 and 113,988.84 is: 170,693.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,938.11 : 284,424.90 = 113,988.84 : x
  2. Step 2: Convert to fraction form
    189,938.11/284,424.90 = 113,988.84/x
  3. Step 3: Cross multiply
    189,938.11x = 284,424.90 × 113,988.84
  4. Step 4: Simplify right side
    189,938.11x = 32,421,263,778.98
  5. Step 5: Solve for x
    x = 32,421,263,778.98/189,938.11
  6. Step 6: Final answer
    x = 170,693.83

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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.