Home / 119,723.84-165,158.20-91,380.32

Finding the Fourth Proportional to 119,723.84, 165,158.20 and 91,380.32

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Solution

The fourth proportional to 119,723.84, 165,158.20 and 91,380.32 is: 126,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,723.84 : 165,158.20 = 91,380.32 : x
  2. Step 2: Convert to fraction form
    119,723.84/165,158.20 = 91,380.32/x
  3. Step 3: Cross multiply
    119,723.84x = 165,158.20 × 91,380.32
  4. Step 4: Simplify right side
    119,723.84x = 15,092,209,166.62
  5. Step 5: Solve for x
    x = 15,092,209,166.62/119,723.84
  6. Step 6: Final answer
    x = 126,058.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.