Home / 189,973.11-284,937.79-77,575.89

Finding the Fourth Proportional to 189,973.11, 284,937.79 and 77,575.89

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Solution

The fourth proportional to 189,973.11, 284,937.79 and 77,575.89 is: 116,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,973.11 : 284,937.79 = 77,575.89 : x
  2. Step 2: Convert to fraction form
    189,973.11/284,937.79 = 77,575.89/x
  3. Step 3: Cross multiply
    189,973.11x = 284,937.79 × 77,575.89
  4. Step 4: Simplify right side
    189,973.11x = 22,104,302,653.88
  5. Step 5: Solve for x
    x = 22,104,302,653.88/189,973.11
  6. Step 6: Final answer
    x = 116,354.90

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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.