Home / 133,039.37-183,536.74-81,358.74

Finding the Fourth Proportional to 133,039.37, 183,536.74 and 81,358.74

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Solution

The fourth proportional to 133,039.37, 183,536.74 and 81,358.74 is: 112,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,039.37 : 183,536.74 = 81,358.74 : x
  2. Step 2: Convert to fraction form
    133,039.37/183,536.74 = 81,358.74/x
  3. Step 3: Cross multiply
    133,039.37x = 183,536.74 × 81,358.74
  4. Step 4: Simplify right side
    133,039.37x = 14,932,317,910.11
  5. Step 5: Solve for x
    x = 14,932,317,910.11/133,039.37
  6. Step 6: Final answer
    x = 112,239.84

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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.