Home / 133,068.42-183,626.60-76,479.80

Finding the Fourth Proportional to 133,068.42, 183,626.60 and 76,479.80

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Solution

The fourth proportional to 133,068.42, 183,626.60 and 76,479.80 is: 105,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.42 : 183,626.60 = 76,479.80 : x
  2. Step 2: Convert to fraction form
    133,068.42/183,626.60 = 76,479.80/x
  3. Step 3: Cross multiply
    133,068.42x = 183,626.60 × 76,479.80
  4. Step 4: Simplify right side
    133,068.42x = 14,043,724,342.15
  5. Step 5: Solve for x
    x = 14,043,724,342.15/133,068.42
  6. Step 6: Final answer
    x = 105,537.62

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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.