Home / 133,116.11-183,723.91-78,665.96

Finding the Fourth Proportional to 133,116.11, 183,723.91 and 78,665.96

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Solution

The fourth proportional to 133,116.11, 183,723.91 and 78,665.96 is: 108,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,116.11 : 183,723.91 = 78,665.96 : x
  2. Step 2: Convert to fraction form
    133,116.11/183,723.91 = 78,665.96/x
  3. Step 3: Cross multiply
    133,116.11x = 183,723.91 × 78,665.96
  4. Step 4: Simplify right side
    133,116.11x = 14,452,818,017.75
  5. Step 5: Solve for x
    x = 14,452,818,017.75/133,116.11
  6. Step 6: Final answer
    x = 108,573.02

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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.