Home / 133,297.60-183,956.24-76,709.12

Finding the Fourth Proportional to 133,297.60, 183,956.24 and 76,709.12

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Solution

The fourth proportional to 133,297.60, 183,956.24 and 76,709.12 is: 105,861.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,297.60 : 183,956.24 = 76,709.12 : x
  2. Step 2: Convert to fraction form
    133,297.60/183,956.24 = 76,709.12/x
  3. Step 3: Cross multiply
    133,297.60x = 183,956.24 × 76,709.12
  4. Step 4: Simplify right side
    133,297.60x = 14,111,121,288.91
  5. Step 5: Solve for x
    x = 14,111,121,288.91/133,297.60
  6. Step 6: Final answer
    x = 105,861.78

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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.