Home / 189,971.11-284,934.79-77,573.89

Finding the Fourth Proportional to 189,971.11, 284,934.79 and 77,573.89

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Solution

The fourth proportional to 189,971.11, 284,934.79 and 77,573.89 is: 116,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,971.11 : 284,934.79 = 77,573.89 : x
  2. Step 2: Convert to fraction form
    189,971.11/284,934.79 = 77,573.89/x
  3. Step 3: Cross multiply
    189,971.11x = 284,934.79 × 77,573.89
  4. Step 4: Simplify right side
    189,971.11x = 22,103,500,056.63
  5. Step 5: Solve for x
    x = 22,103,500,056.63/189,971.11
  6. Step 6: Final answer
    x = 116,351.90

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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.